Revert of Wake Lock API implementation (Chromium part)

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 5e169fe094a8a04b690aa03bbec2372b690b1fd6..7afa3518be22289b718b6ad663acab343244fee8 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -63,7 +63,6 @@
 class WebPresentationClient;
 class WebPushClient;
 class WebSecurityOrigin;
-class WebWakeLockClient;
 struct WebCompositionUnderline;
 struct WebContextMenuData;
 struct WebCursorInfo;
@@ -115,7 +114,6 @@
 class RenderWidgetFullscreenPepper;
 class ScreenOrientationDispatcher;
 class UserMediaClientImpl;
-class WakeLockDispatcher;
 struct CommonNavigationParams;
 struct CustomContextMenuContext;
 struct FrameReplicationState;
@@ -511,7 +509,6 @@
                                    unsigned long long requested_size,
                                    blink::WebStorageQuotaCallbacks callbacks);
   virtual void willOpenWebSocket(blink::WebSocketHandle* handle);
-  virtual blink::WebWakeLockClient* wakeLockClient();
   virtual blink::WebGeolocationClient* geolocationClient();
   virtual blink::WebPushClient* pushClient();
   virtual blink::WebPresentationClient* presentationClient();
@@ -992,8 +989,6 @@
   // local roots.
   DevToolsAgent* devtools_agent_;
 
-  WakeLockDispatcher* wakelock_dispatcher_;
-
   // The geolocation dispatcher attached to this frame, lazily initialized.
   GeolocationDispatcher* geolocation_dispatcher_;