Enable builtin Mojo JS modules in layout tests

content/renderer/mojo_bindings_controller.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MOJO_BINDINGS_CONTROLLER_H_
 #define CONTENT_RENDERER_MOJO_BINDINGS_CONTROLLER_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 10 matching lines @@
 class MojoContextState;
 
 // MojoBindingsController is responsible for enabling the renderer side of mojo
 // bindings. It creates (and destroys) a MojoContextState at the appropriate
 // times and handles the necessary browser messages. MojoBindingsController
 // destroys itself when the RendererFrame it is created with is destroyed.
 class MojoBindingsController
     : public RenderFrameObserver,
       public RenderFrameObserverTracker<MojoBindingsController> {
  public:
-  explicit MojoBindingsController(RenderFrame* render_frame);
+  MojoBindingsController(RenderFrame* render_frame, bool for_layout_tests);
 
  private:
   ~MojoBindingsController() override;
 
   void CreateContextState();
   void DestroyContextState(v8::Local<v8::Context> context);
   MojoContextState* GetContextState();
 
   // RenderFrameObserver overrides:
   void WillReleaseScriptContext(v8::Local<v8::Context> context,
                                 int world_id) override;
   void DidFinishDocumentLoad() override;
   void DidCreateDocumentElement() override;
   void DidClearWindowObject() override;
 
+  const bool for_layout_tests_;
+
   DISALLOW_COPY_AND_ASSIGN(MojoBindingsController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MOJO_BINDINGS_CONTROLLER_H_