Adding Chrome-side WebVR interface

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index 21b4df4d1d06e7b0968afea4988a7446f4fc99e2..ce92365e372bf0b34c8e888d42ef6bd365b02c44 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -115,6 +115,7 @@ struct RequestNavigationParams;
 struct ResourceResponseHead;
 struct StartNavigationParams;
 struct StreamOverrideParameters;
+class VRDispatcher;
 
 class CONTENT_EXPORT RenderFrameImpl
     : public RenderFrame,
@@ -537,6 +538,7 @@ class CONTENT_EXPORT RenderFrameImpl
   virtual bool exitFullscreen();
   virtual blink::WebPermissionClient* permissionClient();
   virtual blink::WebAppBannerClient* appBannerClient();
+  blink::WebVRClient* webVRClient() override;
 
   // WebMediaPlayerDelegate implementation:
   void DidPlay(blink::WebMediaPlayer* player) override;
@@ -982,6 +984,9 @@ class CONTENT_EXPORT RenderFrameImpl
 
   scoped_ptr<blink::WebAppBannerClient> app_banner_client_;
 
+  // The VR dispatcher attached to the frame, lazily initialized.
+  VRDispatcher* vr_dispatcher_;
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
   // The external popup for the currently showing select popup.
   scoped_ptr<ExternalPopupMenu> external_popup_menu_;