Enable VM service inside Dartium Renderer processes

Source/bindings/dart/DartController.h

Index: Source/bindings/dart/DartController.h
diff --git a/Source/bindings/dart/DartController.h b/Source/bindings/dart/DartController.h
index dd2af81d4e930a2af51f9ae7d2274391d2361760..e6a21b6aaddd4063004a465451883113719462a3 100644
--- a/Source/bindings/dart/DartController.h
+++ b/Source/bindings/dart/DartController.h
@@ -83,6 +83,8 @@ public:
     static DartController* retrieve(Frame*);
     static DartController* retrieve(ScriptExecutionContext*);
 
+    Dart_Isolate isolate() { return m_isolate; }
+
 private:
     static void initVMIfNeeded();
 
@@ -115,6 +117,7 @@ private:
 
     friend class DartDomLoadCallback;
     friend class DartScriptRunner;
+    friend class DartService;
 };
 
 }