Fix for bug 16534 do not Enter the same isolate on two different threads.

Source/bindings/dart/DartController.cpp

Index: Source/bindings/dart/DartController.cpp
===================================================================
--- Source/bindings/dart/DartController.cpp	(revision 166663)
+++ Source/bindings/dart/DartController.cpp	(working copy)
@@ -358,8 +358,7 @@
 
 static void messageNotifyCallback(Dart_Isolate destinationIsolate)
 {
-    DartIsolateScope scope(destinationIsolate);
-    DartDOMData* domData = DartDOMData::current();
+    DartDOMData* domData = static_cast<DartDOMData*>(Dart_IsolateData(destinationIsolate));
     ASSERT(domData->isDOMEnabled());
     ExecutionContext* destinationContext = domData->scriptExecutionContext();
     destinationContext->postTask(adoptPtr(new MessageNotifyTask(domData->threadSafeIsolateWrapper())));
@@ -481,10 +480,8 @@
 
 static void setDartFlags(const char* str)
 {
-    const char* disableProfiler = "--no-profile";
-
     if (!str) {
-        Dart_SetVMFlags(1, &disableProfiler);
+        Dart_SetVMFlags(0, 0);
         return;
     }
 
@@ -504,7 +501,7 @@
     }
 
     // Allocate argument array.
-    const char** argv = new const char*[argc + 1];
+    const char** argv = new const char*[argc];
 
     // Split the flags string into arguments.
     argc = 0;
@@ -515,10 +512,9 @@
             *p++ = '\0'; // 0-terminate argument
         p = skipWhiteSpace(p);
     }
-    argv[argc] = disableProfiler;
 
     // Set the flags.
-    Dart_SetVMFlags(argc + 1, argv);
+    Dart_SetVMFlags(argc, argv);
 
     delete[] argv;
     delete[] copy;