Add blink::ServiceRegistry and expose it from LocalFrame and Platform.

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index 5893735260079dae3a146bfffcb26093f41a89af..50cf1a8bea30df077fa0befffdcabc7bc4c8c1eb 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -49,6 +49,7 @@ class WebThreadImplForRendererScheduler;
 }
 
 namespace content {
+class BlinkServiceRegistryWrapper;
 class DeviceLightEventPump;
 class DeviceMotionEventPump;
 class DeviceOrientationEventPump;
@@ -178,8 +179,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   blink::WebString convertIDNToUnicode(
       const blink::WebString& host,
       const blink::WebString& languages) override;
-  void connectToRemoteService(const char* name,
-                              mojo::ScopedMessagePipeHandle handle) override;
+  blink::ServiceRegistry* serviceRegistry() override;
   void startListening(blink::WebPlatformEventType,
                       blink::WebPlatformEventListener*) override;
   void stopListening(blink::WebPlatformEventType) override;
@@ -299,6 +299,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
 
   scoped_ptr<LocalStorageCachedAreas> local_storage_cached_areas_;
 
+  scoped_ptr<BlinkServiceRegistryWrapper> service_registry_wrapper_;
+
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };