Enable builtin Mojo JS modules in layout tests

content/renderer/mojo_bindings_controller.cc

Index: content/renderer/mojo_bindings_controller.cc
diff --git a/content/renderer/mojo_bindings_controller.cc b/content/renderer/mojo_bindings_controller.cc
index 08abcf574f20ac285cf03040c3ca20efaf985ebe..b3b9f0757f254d2911349e8cd9c2fb42f66cf2f9 100644
--- a/content/renderer/mojo_bindings_controller.cc
+++ b/content/renderer/mojo_bindings_controller.cc
@@ -26,9 +26,11 @@ struct MojoContextStateData : public base::SupportsUserData::Data {
 
 }  // namespace
 
-MojoBindingsController::MojoBindingsController(RenderFrame* render_frame)
+MojoBindingsController::MojoBindingsController(RenderFrame* render_frame,
+                                               bool for_layout_tests)
     : RenderFrameObserver(render_frame),
-      RenderFrameObserverTracker<MojoBindingsController>(render_frame) {}
+      RenderFrameObserverTracker<MojoBindingsController>(render_frame),
+      for_layout_tests_(for_layout_tests) {}
 
 MojoBindingsController::~MojoBindingsController() {
 }
@@ -40,7 +42,7 @@ void MojoBindingsController::CreateContextState() {
   v8::Local<v8::Context> context = frame->mainWorldScriptContext();
   gin::PerContextData* context_data = gin::PerContextData::From(context);
   MojoContextStateData* data = new MojoContextStateData;
-  data->state.reset(new MojoContextState(frame, context));
+  data->state.reset(new MojoContextState(frame, context, for_layout_tests_));
   context_data->SetUserData(kMojoContextStateKey, data);
 }