Do not show source links in CPU profile when offline (#6769)

* Do not show source links in CPU profile when offline

* fix test

packages/devtools_app/lib/src/shared/profiler_utils.dart

diff --git a/packages/devtools_app/lib/src/shared/profiler_utils.dart b/packages/devtools_app/lib/src/shared/profiler_utils.dart
index c6ad978..6f858ce 100644
--- a/packages/devtools_app/lib/src/shared/profiler_utils.dart
+++ b/packages/devtools_app/lib/src/shared/profiler_utils.dart
@@ -277,7 +277,8 @@
 
       final sourceDisplay = '($packageUriWithSourceLine)';
       final script = scriptManager.scriptRefForUri(packageUri);
-      final showSourceAsLink = script != null;
+      final showSourceAsLink =
+          script != null && !offlineController.offlineMode.value;
       if (showSourceAsLink) {
         sourceTextSpans.add(
           VmServiceObjectLink(

packages/devtools_app/test/cpu_profiler/method_table/method_table_test.dart

diff --git a/packages/devtools_app/test/cpu_profiler/method_table/method_table_test.dart b/packages/devtools_app/test/cpu_profiler/method_table/method_table_test.dart
index 6a385c2..55f2144 100644
--- a/packages/devtools_app/test/cpu_profiler/method_table/method_table_test.dart
+++ b/packages/devtools_app/test/cpu_profiler/method_table/method_table_test.dart
@@ -30,6 +30,7 @@
       createMockServiceConnectionWithDefaults(),
     );
     setGlobal(IdeTheme, IdeTheme());
+    setGlobal(OfflineModeController, OfflineModeController());
     final mockScriptManager = MockScriptManager();
     when(mockScriptManager.sortedScripts).thenReturn(
       ValueNotifier<List<ScriptRef>>([]),