Move the Web Bluetooth implementation from child/ to renderer/.

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 7d285f3a04f369fc73478d79282e2826a9b5ef27..135868946a3a73fb7166be7afe2653597abc64bf 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -541,6 +541,7 @@ class CONTENT_EXPORT RenderFrameImpl
                                        const blink::WebString& title);
   virtual void unregisterProtocolHandler(const blink::WebString& scheme,
                                          const blink::WebURL& url);
+  virtual blink::WebBluetooth* bluetooth();
 
 #if defined(ENABLE_WEBVR)
   blink::WebVRClient* webVRClient() override;
@@ -997,6 +998,8 @@ class CONTENT_EXPORT RenderFrameImpl
 
   scoped_ptr<blink::WebAppBannerClient> app_banner_client_;
 
+  scoped_ptr<blink::WebBluetooth> bluetooth_;
+
 #if defined(ENABLE_WEBVR)
   // The VR dispatcher attached to the frame, lazily initialized.
   scoped_ptr<VRDispatcher> vr_dispatcher_;