diff --git a/tools/deps/dartium.deps/DEPS b/tools/deps/dartium.deps/DEPS
index d81a2c4..17b660e 100644
--- a/tools/deps/dartium.deps/DEPS
+++ b/tools/deps/dartium.deps/DEPS
@@ -5,6 +5,72 @@
 # an exact copy of the modified DEPS.chromium in this directory.
 
 vars = {
+  # Start of Dartium vars
+
+  "dartium_chromium_commit": "67146b50bbc0dab33006c51b5dde056ee16f0f2b",
+  "chromium_base_revision": "378081",
+
+  # We use mirrors of all github repos to guarantee reproducibility and
+  # consistency between what users see and what the bots see.
+  # We need the mirrors to not have 100+ bots pulling github constantly.
+  # We mirror our github repos on chromium git servers.
+  # DO NOT use this var if you don't see a mirror here:
+  #   https://chromium.googlesource.com/
+  # named like:
+  #   external/github.com/dart-lang/NAME
+  # It is ok to add a dependency directly on dart-lang (dart-lang only)
+  # github repo until the mirror has been created, but please do file a bug
+  # against infra to make that happen.
+  "github_mirror":
+      "https://chromium.googlesource.com/external/github.com/dart-lang/%s.git",
+
+  "args_tag": "@0.13.0",
+  "barback_rev" : "@29ee90dbcf77cfd64632fa2797a4c8a4f29a4b51",
+  "charcode_tag": "@1.1.0",
+  "collection_tag": "@1.9.1",
+  "crypto_rev" : "@2df57a1e26dd88e8d0614207d4b062c73209917d",
+  "csslib_tag" : "@0.12.0",
+  "dart2js_info_tag" : "@0.5.4+2",
+  "glob_rev": "@704cf75e4f26b417505c5c611bdaacd8808467dd",
+  "html_tag" : "@0.12.1+1",
+  "http_rev" : "@9b93e1542c753090c50b46ef1592d44bc858bfe7",
+  "http_multi_server_tag" : "@1.3.2",
+  "http_parser_rev" : "@8b179e36aba985208e4c5fb15cfddd386b6370a4",
+  "http_throttle_rev" : "@a81f08be942cdd608883c7b67795c12226abc235",
+  "json_rpc_2_rev": "@a38eefd116d910199de205f962af92fed87c164c",
+  "logging_rev": "@85d83e002670545e9039ad3985f0018ab640e597",
+  "matcher_tag": "@0.12.0",
+  "mime_rev": "@75890811d4af5af080351ba8a2853ad4c8df98dd",
+  "metatest_rev": "@e5aa8e4e19fc4188ac2f6d38368a47d8f07c3df1",
+  "oauth2_rev": "@1bff41f4d54505c36f2d1a001b83b8b745c452f5",
+  "observatory_pub_packages_rev": "@26aad88f1c1915d39bbcbff3cad589e2402fdcf1",
+  "package_config_rev": "@0.1.3",
+  "package_resolver_tag": "@1.0.2+1",
+  "path_rev": "@b657c0854d1cf41c014986fa9d2321f1173df805",
+  "plugin_tag": "@0.1.0",
+  "pool_rev": "@22e12aeb16ad0b626900dbe79e4a25391ddfb28c",
+  "pub_rev": "@d7649be15213c43669a40c33af516d8eb210e876",
+  "pub_semver_tag": "@1.2.0",
+  "quiver_tag": "@0.21.4",
+  "root_certificates_rev": "@aed07942ce98507d2be28cbd29e879525410c7fc",
+  "shelf_rev": "@1e87b79b21ac5e6fa2f93576d6c06eaa65285ef4",
+  "shelf_web_socket_rev": "@ff170cec2c0e4e5722cdf47c557be63b5035a602",
+  "source_span_rev": "@42501132e43599a151ba6727d340e44442f86c05",
+  "stack_trace_tag": "@1.2.1",
+  "string_scanner_rev": "@3e7617d6f74ba382e9b6130b1cc12091d89a9bc5",
+  "test_tag": "@0.12.1",
+  "unittest_tag": "@0.11.6",
+  "utf_rev": "@1f55027068759e2d52f2c12de6a57cce5f3c5ee6",
+  "watcher_tag": "@0.9.5",
+  "yaml_rev": "@563a5ffd4a800a2897b8f4dd6b19f2a370df2f2b",
+  "zlib_rev": "@c3d0a6190f2f8c924a05ab6cc97b8f975bddd33f",
+  "web_components_rev": "@6349e09f9118dce7ae1b309af5763745e25a9d61",
+  "WebCore_rev": "@3c45690813c112373757bbef53de1602a62af609",
+
+  "co19_rev": "@4af9ef149be554216c5bb16cbac8e50d4c28cdf1",
+
+  # End of Dartium vars
+
   'angle_revision':
     '4d76061e2be5b8b005afba8e0c145592c3b04527',
   'boringssl_revision':
@@ -187,7 +253,113 @@
   'src/tools/swarming_client':
     (Var("chromium_git")) + '/external/swarming.client.git@a72f46e42dba1335e8001499b4621acad2d26728',
   'src/v8':
-    (Var("chromium_git")) + '/v8/v8.git@45a71919836046560ba8eb349eaf9172857ffe6f'
+    (Var("chromium_git")) + '/v8/v8.git@45a71919836046560ba8eb349eaf9172857ffe6f',
+
+  # Start of Dartium specific deps
+
+  "src":
+    Var("chromium_git") + "/dart/dartium/src.git" + "@" +
+        Var("dartium_chromium_commit"),
+  "src/dart/third_party/pkg/args":
+      (Var("github_mirror") % "args") + Var("args_tag"),
+  "src/dart/third_party/pkg/barback":
+      (Var("github_mirror") % "barback") + Var("barback_rev"),
+  "src/dart/third_party/pkg/charcode":
+      (Var("github_mirror") % "charcode") + Var("charcode_tag"),
+  "src/dart/third_party/pkg/crypto":
+      (Var("github_mirror") % "crypto") + Var("crypto_rev"),
+  "src/dart/third_party/pkg/csslib":
+      (Var("github_mirror") % "csslib") + Var("csslib_tag"),
+  "src/dart/third_party/pkg/dart2js_info":
+      (Var("github_mirror") % "dart2js_info") + Var("dart2js_info_tag"),
+  "src/dart/third_party/pkg/collection":
+      (Var("github_mirror") % "collection") + Var("collection_tag"),
+  "src/dart/third_party/pkg/glob":
+      (Var("github_mirror") % "glob") + Var("glob_rev"),
+  "src/dart/third_party/pkg/html":
+      (Var("github_mirror") % "html") + Var("html_tag"),
+  "src/dart/third_party/pkg/json_rpc_2":
+      (Var("github_mirror") % "json_rpc_2") + Var("json_rpc_2_rev"),
+  "src/dart/third_party/pkg/http":
+      (Var("github_mirror") % "http") + Var("http_rev"),
+  "src/dart/third_party/pkg/http_multi_server":
+      (Var("github_mirror") % "http_multi_server") +
+      Var("http_multi_server_tag"),
+  "src/dart/third_party/pkg/http_parser":
+      (Var("github_mirror") % "http_parser") + Var("http_parser_rev"),
+  "src/dart/third_party/pkg/http_throttle":
+      (Var("github_mirror") % "http_throttle") + Var("http_throttle_rev"),
+  "src/dart/third_party/pkg/logging":
+      (Var("github_mirror") % "logging") + Var("logging_rev"),
+  "src/dart/third_party/pkg/matcher":
+      (Var("github_mirror") % "matcher") + Var("matcher_tag"),
+  "src/dart/third_party/pkg/metatest":
+      (Var("github_mirror") % "metatest") + Var("metatest_rev"),
+  "src/dart/third_party/pkg/mime":
+      (Var("github_mirror") % "mime") + Var("mime_rev"),
+  "src/dart/third_party/pkg/oauth2":
+      (Var("github_mirror") % "oauth2") + Var("oauth2_rev"),
+  "src/dart/third_party/observatory_pub_packages":
+      (Var("github_mirror") % "observatory_pub_packages") +
+      Var("observatory_pub_packages_rev"),
+  "src/dart/third_party/pkg_tested/package_config":
+      (Var("github_mirror") % "package_config") + Var("package_config_rev"),
+  "src/dart/third_party/pkg_tested/package_resolver":
+      "https://github.com/dart-lang/package_resolver.git" +
+      Var("package_resolver_tag"),
+  "src/dart/third_party/pkg/path":
+      (Var("github_mirror") % "path") + Var("path_rev"),
+  "src/dart/third_party/pkg/plugin":
+      (Var("github_mirror") % "plugin") + Var("plugin_tag"),
+  "src/dart/third_party/pkg/pool":
+      (Var("github_mirror") % "pool") + Var("pool_rev"),
+  "src/dart/third_party/pkg/pub":
+      (Var("github_mirror") % "pub") + Var("pub_rev"),
+  "src/dart/third_party/pkg/pub_semver":
+      (Var("github_mirror") % "pub_semver") + Var("pub_semver_tag"),
+  "src/dart/third_party/pkg/quiver":
+      Var("chromium_git")
+      + "/external/github.com/google/quiver-dart.git"
+      + Var("quiver_tag"),
+  "src/dart/third_party/root_certificates":
+      (Var("github_mirror") % "root_certificates")
+      + Var("root_certificates_rev"),
+  "src/dart/third_party/pkg/shelf":
+      (Var("github_mirror") % "shelf") + Var("shelf_rev"),
+  "src/dart/third_party/pkg/shelf_web_socket":
+      (Var("github_mirror") % "shelf_web_socket") + Var("shelf_web_socket_rev"),
+  "src/dart/third_party/pkg/source_span":
+      (Var("github_mirror") % "source_span") + Var("source_span_rev"),
+  "src/dart/third_party/pkg/stack_trace":
+      (Var("github_mirror") % "stack_trace") + Var("stack_trace_tag"),
+  "src/dart/third_party/pkg/string_scanner":
+      (Var("github_mirror") % "string_scanner") + Var("string_scanner_rev"),
+  "src/dart/third_party/pkg/test":
+      (Var("github_mirror") % "test") + Var("test_tag"),
+  "src/dart/third_party/pkg/utf":
+      (Var("github_mirror") % "utf") + Var("utf_rev"),
+  "src/dart/third_party/pkg/watcher":
+      (Var("github_mirror") % "watcher") + Var("watcher_tag"),
+  "src/dart/third_party/pkg/web_components":
+      (Var("github_mirror") % "web-components") + Var("web_components_rev"),
+  "src/dart/third_party/pkg/yaml":
+      (Var("github_mirror") % "yaml") + Var("yaml_rev"),
+
+  # TODO(sigmund): should be src/dart/third_party/pkg/unittest (dartbug.com/21949)
+  "src/dart/pkg/unittest":
+      (Var("github_mirror") % "test") + Var("unittest_tag"),
+
+  "src/dart/third_party/WebCore":
+    "https://github.com/dart-lang/webcore.git" + Var("WebCore_rev"),
+
+  "src/dart/tests/co19/src":
+      (Var("github_mirror") % "co19") + Var("co19_rev"),
+
+  "src/dart/third_party/zlib":
+      Var("chromium_git") + "/chromium/src/third_party/zlib.git" +
+      Var("zlib_rev"),
+
+  # End of Dartium deps
 }
 deps_os = {
   'android': {
@@ -263,8 +435,10 @@
   'mac': {
     'src/chrome/installer/mac/third_party/xz/xz':
       (Var("chromium_git")) + '/chromium/deps/xz.git@eecaf55632ca72e90eb2641376bce7cdbc7284f7',
-    'src/chrome/tools/test/reference_build/chrome_mac':
-      (Var("chromium_git")) + '/chromium/reference_builds/chrome_mac.git@8dc181329e7c5255f83b4b85dc2f71498a237955',
+
+    # Dartium deps_os
+    'src/chrome/tools/test/reference_build/chrome_mac': None,
+
     'src/third_party/google_toolbox_for_mac/src':
       (Var("chromium_git")) + '/external/github.com/google/google-toolbox-for-mac.git@401878398253074c515c03cb3a3f8bb0cc8da6e9',
     'src/third_party/lighttpd':
@@ -275,8 +449,9 @@
       (Var("chromium_git")) + '/external/pdfsqueeze.git@5936b871e6a087b7e50d4cbcb122378d8a07499f'
   },
   'unix': {
-    'src/chrome/tools/test/reference_build/chrome_linux':
-      (Var("chromium_git")) + '/chromium/reference_builds/chrome_linux64.git@033d053a528e820e1de3e2db766678d862a86b36',
+    # Dartium deps_os
+    'src/chrome/tools/test/reference_build/chrome_linux': None,
+
     'src/third_party/chromite':
       (Var("chromium_git")) + '/chromiumos/chromite.git@e19f83ba227bf1ec0077f5d3a816a415f1dd88d0',
     'src/third_party/cros_system_api':
@@ -307,8 +482,9 @@
       (Var("chromium_git")) + '/chromium/deps/xdg-utils.git@d80274d5869b17b8c9067a1022e4416ee7ed5e0d'
   },
   'win': {
-    'src/chrome/tools/test/reference_build/chrome_win':
-      (Var("chromium_git")) + '/chromium/reference_builds/chrome_win.git@f8a3a845dfc845df6b14280f04f86a61959357ef',
+    # Dartium deps_os
+    'src/chrome/tools/test/reference_build/chrome_win': None,
+
     'src/third_party/bison':
       (Var("chromium_git")) + '/chromium/deps/bison.git@083c9a45e4affdd5464ee2b224c2df649c6e26c3',
     'src/third_party/cygwin':
@@ -339,12 +515,10 @@
 }
 hooks = [
   {
-    'action': [
-      'python',
-      'src/build/landmines.py'
-    ],
-    'pattern':
-      '.',
+    # Dartium hooks start
+    'action': ['python', 'src/dart/tools/dartium/generate_dart_vm_version.py'],
+    'pattern': 'dart',
+    # Dartium hooks end
     'name':
       'landmines'
   },
@@ -717,7 +891,43 @@
       '.',
     'name':
       'gyp'
+  },
+
+  # Dartium hooks start
+  {
+    "name": "checked_in_dart_sdks",
+    "pattern": ".",
+    "action": [
+      "download_from_google_storage",
+      "--no_auth",
+      "--no_resume",
+      "--bucket",
+      "dart-dependencies",
+      "--recursive",
+      "--auto_platform",
+      "--extract",
+      "--directory",
+      "src/dart/tools/sdks",
+    ],
+  },
+  {
+    "name": "unittest",
+    # Unittest is an early version, 0.11.6, of the package "test"
+    # Do not use it in any new tests.
+    "pattern": ".",
+    "action": [
+      "download_from_google_storage",
+      "--no_auth",
+      "--no_resume",
+      "--bucket",
+      "dart-dependencies",
+      "--extract",
+      "-s",
+      "src/dart/third_party/pkg/unittest.tar.gz.sha1",
+    ],
   }
+
+  # Dartium hooks end
 ]
 include_rules = [
   '+base',
@@ -741,221 +951,3 @@
 ]
 
 # END OF IMPORTED CHROMIUM DEPS
-
-# Now we need to override some settings and add some new ones.
-
-vars.update({
-  "dartium_chromium_commit": "a0717ebdcf4578b98de1d858005aa9c5f346bd33",
-  "chromium_base_revision": "378081",
-
-  # We use mirrors of all github repos to guarantee reproducibility and
-  # consistency between what users see and what the bots see.
-  # We need the mirrors to not have 100+ bots pulling github constantly.
-  # We mirror our github repos on chromium git servers.
-  # DO NOT use this var if you don't see a mirror here:
-  #   https://chromium.googlesource.com/
-  # named like:
-  #   external/github.com/dart-lang/NAME
-  # It is ok to add a dependency directly on dart-lang (dart-lang only)
-  # github repo until the mirror has been created, but please do file a bug
-  # against infra to make that happen.
-  "github_mirror":
-      "https://chromium.googlesource.com/external/github.com/dart-lang/%s.git",
-
-  "args_tag": "@0.13.0",
-  "barback_rev" : "@29ee90dbcf77cfd64632fa2797a4c8a4f29a4b51",
-  "charcode_tag": "@1.1.0",
-  "collection_tag": "@1.9.1",
-  "crypto_rev" : "@2df57a1e26dd88e8d0614207d4b062c73209917d",
-  "csslib_tag" : "@0.12.0",
-  "dart2js_info_tag" : "@0.5.4+2",
-  "glob_rev": "@704cf75e4f26b417505c5c611bdaacd8808467dd",
-  "html_tag" : "@0.12.1+1",
-  "http_rev" : "@9b93e1542c753090c50b46ef1592d44bc858bfe7",
-  "http_multi_server_tag" : "@1.3.2",
-  "http_parser_rev" : "@8b179e36aba985208e4c5fb15cfddd386b6370a4",
-  "http_throttle_rev" : "@a81f08be942cdd608883c7b67795c12226abc235",
-  "json_rpc_2_rev": "@a38eefd116d910199de205f962af92fed87c164c",
-  "logging_rev": "@85d83e002670545e9039ad3985f0018ab640e597",
-  "matcher_tag": "@0.12.0",
-  "mime_rev": "@75890811d4af5af080351ba8a2853ad4c8df98dd",
-  "metatest_rev": "@e5aa8e4e19fc4188ac2f6d38368a47d8f07c3df1",
-  "oauth2_rev": "@1bff41f4d54505c36f2d1a001b83b8b745c452f5",
-  "observatory_pub_packages_rev": "@26aad88f1c1915d39bbcbff3cad589e2402fdcf1",
-  "package_config_rev": "@0.1.3",
-  "package_resolver_tag": "@1.0.2+1",
-  "path_rev": "@b657c0854d1cf41c014986fa9d2321f1173df805",
-  "plugin_tag": "@0.1.0",
-  "pool_rev": "@22e12aeb16ad0b626900dbe79e4a25391ddfb28c",
-  "pub_rev": "@d7649be15213c43669a40c33af516d8eb210e876",
-  "pub_semver_tag": "@1.2.0",
-  "quiver_tag": "@0.21.4",
-  "root_certificates_rev": "@aed07942ce98507d2be28cbd29e879525410c7fc",
-  "shelf_rev": "@1e87b79b21ac5e6fa2f93576d6c06eaa65285ef4",
-  "shelf_web_socket_rev": "@ff170cec2c0e4e5722cdf47c557be63b5035a602",
-  "source_span_rev": "@42501132e43599a151ba6727d340e44442f86c05",
-  "stack_trace_tag": "@1.2.1",
-  "string_scanner_rev": "@3e7617d6f74ba382e9b6130b1cc12091d89a9bc5",
-  "test_tag": "@0.12.1",
-  "unittest_tag": "@0.11.6",
-  "utf_rev": "@1f55027068759e2d52f2c12de6a57cce5f3c5ee6",
-  "watcher_tag": "@0.9.5",
-  "yaml_rev": "@563a5ffd4a800a2897b8f4dd6b19f2a370df2f2b",
-  "zlib_rev": "@c3d0a6190f2f8c924a05ab6cc97b8f975bddd33f",
-  "web_components_rev": "@6349e09f9118dce7ae1b309af5763745e25a9d61",
-  "WebCore_rev": "@3c45690813c112373757bbef53de1602a62af609",
-
-  "co19_rev": "@4af9ef149be554216c5bb16cbac8e50d4c28cdf1",
-})
-
-deps.update({
-  "src":
-    Var("chromium_git") + "/dart/dartium/src.git" + "@" +
-        Var("dartium_chromium_commit"),
-  "src/dart/third_party/pkg/args":
-      (Var("github_mirror") % "args") + Var("args_tag"),
-  "src/dart/third_party/pkg/barback":
-      (Var("github_mirror") % "barback") + Var("barback_rev"),
-  "src/dart/third_party/pkg/charcode":
-      (Var("github_mirror") % "charcode") + Var("charcode_tag"),
-  "src/dart/third_party/pkg/crypto":
-      (Var("github_mirror") % "crypto") + Var("crypto_rev"),
-  "src/dart/third_party/pkg/csslib":
-      (Var("github_mirror") % "csslib") + Var("csslib_tag"),
-  "src/dart/third_party/pkg/dart2js_info":
-      (Var("github_mirror") % "dart2js_info") + Var("dart2js_info_tag"),
-  "src/dart/third_party/pkg/collection":
-      (Var("github_mirror") % "collection") + Var("collection_tag"),
-  "src/dart/third_party/pkg/glob":
-      (Var("github_mirror") % "glob") + Var("glob_rev"),
-  "src/dart/third_party/pkg/html":
-      (Var("github_mirror") % "html") + Var("html_tag"),
-  "src/dart/third_party/pkg/json_rpc_2":
-      (Var("github_mirror") % "json_rpc_2") + Var("json_rpc_2_rev"),
-  "src/dart/third_party/pkg/http":
-      (Var("github_mirror") % "http") + Var("http_rev"),
-  "src/dart/third_party/pkg/http_multi_server":
-      (Var("github_mirror") % "http_multi_server") +
-      Var("http_multi_server_tag"),
-  "src/dart/third_party/pkg/http_parser":
-      (Var("github_mirror") % "http_parser") + Var("http_parser_rev"),
-  "src/dart/third_party/pkg/http_throttle":
-      (Var("github_mirror") % "http_throttle") + Var("http_throttle_rev"),
-  "src/dart/third_party/pkg/logging":
-      (Var("github_mirror") % "logging") + Var("logging_rev"),
-  "src/dart/third_party/pkg/matcher":
-      (Var("github_mirror") % "matcher") + Var("matcher_tag"),
-  "src/dart/third_party/pkg/metatest":
-      (Var("github_mirror") % "metatest") + Var("metatest_rev"),
-  "src/dart/third_party/pkg/mime":
-      (Var("github_mirror") % "mime") + Var("mime_rev"),
-  "src/dart/third_party/pkg/oauth2":
-      (Var("github_mirror") % "oauth2") + Var("oauth2_rev"),
-  "src/dart/third_party/observatory_pub_packages":
-      (Var("github_mirror") % "observatory_pub_packages") +
-      Var("observatory_pub_packages_rev"),
-  "src/dart/third_party/pkg_tested/package_config":
-      (Var("github_mirror") % "package_config") + Var("package_config_rev"),
-  "src/dart/third_party/pkg_tested/package_resolver":
-      "https://github.com/dart-lang/package_resolver.git" +
-      Var("package_resolver_tag"),
-  "src/dart/third_party/pkg/path":
-      (Var("github_mirror") % "path") + Var("path_rev"),
-  "src/dart/third_party/pkg/plugin":
-      (Var("github_mirror") % "plugin") + Var("plugin_tag"),
-  "src/dart/third_party/pkg/pool":
-      (Var("github_mirror") % "pool") + Var("pool_rev"),
-  "src/dart/third_party/pkg/pub":
-      (Var("github_mirror") % "pub") + Var("pub_rev"),
-  "src/dart/third_party/pkg/pub_semver":
-      (Var("github_mirror") % "pub_semver") + Var("pub_semver_tag"),
-  "src/dart/third_party/pkg/quiver":
-      Var("chromium_git")
-      + "/external/github.com/google/quiver-dart.git"
-      + Var("quiver_tag"),
-  "src/dart/third_party/root_certificates":
-      (Var("github_mirror") % "root_certificates")
-      + Var("root_certificates_rev"),
-  "src/dart/third_party/pkg/shelf":
-      (Var("github_mirror") % "shelf") + Var("shelf_rev"),
-  "src/dart/third_party/pkg/shelf_web_socket":
-      (Var("github_mirror") % "shelf_web_socket") + Var("shelf_web_socket_rev"),
-  "src/dart/third_party/pkg/source_span":
-      (Var("github_mirror") % "source_span") + Var("source_span_rev"),
-  "src/dart/third_party/pkg/stack_trace":
-      (Var("github_mirror") % "stack_trace") + Var("stack_trace_tag"),
-  "src/dart/third_party/pkg/string_scanner":
-      (Var("github_mirror") % "string_scanner") + Var("string_scanner_rev"),
-  "src/dart/third_party/pkg/test":
-      (Var("github_mirror") % "test") + Var("test_tag"),
-  "src/dart/third_party/pkg/utf":
-      (Var("github_mirror") % "utf") + Var("utf_rev"),
-  "src/dart/third_party/pkg/watcher":
-      (Var("github_mirror") % "watcher") + Var("watcher_tag"),
-  "src/dart/third_party/pkg/web_components":
-      (Var("github_mirror") % "web-components") + Var("web_components_rev"),
-  "src/dart/third_party/pkg/yaml":
-      (Var("github_mirror") % "yaml") + Var("yaml_rev"),
-
-  # TODO(sigmund): should be src/dart/third_party/pkg/unittest (dartbug.com/21949)
-  "src/dart/pkg/unittest":
-      (Var("github_mirror") % "test") + Var("unittest_tag"),
-
-  "src/dart/third_party/WebCore":
-    "https://github.com/dart-lang/webcore.git" + Var("WebCore_rev"),
-
-  "src/dart/tests/co19/src":
-      (Var("github_mirror") % "co19") + Var("co19_rev"),
-
-  "src/dart/third_party/zlib":
-      Var("chromium_git") + "/chromium/src/third_party/zlib.git" +
-      Var("zlib_rev"),
-})
-
-deps_os['win'].update({
-  "src/chrome/tools/test/reference_build/chrome_win": None
-})
-deps_os['mac'].update({
-  "src/chrome/tools/test/reference_build/chrome_mac": None
-})
-deps_os['unix'].update({
-  "src/chrome/tools/test/reference_build/chrome_linux": None
-})
-
-hooks[0:0] = [{
-    "pattern": "dart",
-    "action": ["python", "src/dart/tools/dartium/generate_dart_vm_version.py"],
-  }]
-
-hooks.append({
-  "name": "checked_in_dart_sdks",
-  "pattern": ".",
-  "action": [
-    "download_from_google_storage",
-    "--no_auth",
-    "--no_resume",
-    "--bucket",
-    "dart-dependencies",
-    "--recursive",
-    "--auto_platform",
-    "--extract",
-    "--directory",
-    "src/dart/tools/sdks",
-  ],
-})
-hooks.append({
-  "name": "unittest",
-  # Unittest is an early version, 0.11.6, of the package "test"
-  # Do not use it in any new tests.
-  "pattern": ".",
-  "action": [
-    "download_from_google_storage",
-    "--no_auth",
-    "--no_resume",
-    "--bucket",
-    "dart-dependencies",
-    "--extract",
-    "-s",
-    "src/dart/third_party/pkg/unittest.tar.gz.sha1",
-  ],
-})