Fix dds launcher to use the dartaotruntime directly if it is available.

TEST=ci

Change-Id: I32fc7ce15108e0ea67626731c676e0b6533db47a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/434260
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>

https://dart.googlesource.com/sdk/+/1f9fea6c7469153af58d7cb15e8a1d6dacb944f9

DEPS

diff --git a/DEPS b/DEPS
index a6b2562..147804a 100644
--- a/DEPS
+++ b/DEPS
@@ -235,7 +235,7 @@
 ]
 
 deps = {
-  'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '55d93b295b0e3deeabbdee02367a59cf7dfa58ff',
+  'flutter/engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '1f9fea6c7469153af58d7cb15e8a1d6dacb944f9',
 
   'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + 'f79452e3f4ea7b830a00cafa0135c6658e75cd50',
 

commits.json

diff --git a/commits.json b/commits.json
index 9a2e6ef..965b9e7 100644
--- a/commits.json
+++ b/commits.json
@@ -1,4 +1,4 @@
 {
   "flutter":"f79452e3f4ea7b830a00cafa0135c6658e75cd50",
-  "flutter/engine/src/flutter/third_party/dart":"55d93b295b0e3deeabbdee02367a59cf7dfa58ff"
+  "flutter/engine/src/flutter/third_party/dart":"1f9fea6c7469153af58d7cb15e8a1d6dacb944f9"
 }
\ No newline at end of file