Push API: send and receive IPC messages for registration.

content/renderer/render_view_impl.h

Index: content/renderer/render_view_impl.h
diff --git a/content/renderer/render_view_impl.h b/content/renderer/render_view_impl.h
index e08d17d492a8afe413021b8129f1be349f795237..1527bcad82de9ec930ea6cbd2716d404994fb72a 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -150,6 +150,7 @@ class MouseLockDispatcher;
 class NavigationState;
 class NotificationProvider;
 class PepperPluginInstanceImpl;
+class PushMessagingDispatcher;
 class RenderViewObserver;
 class RenderViewTest;
 class RendererAccessibility;
@@ -503,6 +504,7 @@ class CONTENT_EXPORT RenderViewImpl
   virtual blink::WebPageVisibilityState visibilityState() const;
   virtual blink::WebUserMediaClient* userMediaClient();
   virtual blink::WebMIDIClient* webMIDIClient();
+  virtual blink::WebPushClient* webPushClient();
   virtual void draggableRegionsChanged();
 
 #if defined(OS_ANDROID)
@@ -1244,6 +1246,9 @@ class CONTENT_EXPORT RenderViewImpl
   // Holds a reference to the service which provides desktop notifications.
   NotificationProvider* notification_provider_;
 
+  // The push messaging dispatcher attached to this view, lazily initialized.
+  PushMessagingDispatcher* push_messaging_dispatcher_;
+
   // The geolocation dispatcher attached to this view, lazily initialized.
   GeolocationDispatcher* geolocation_dispatcher_;