Initial implementation of API WakeLock.

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 0bc24bdc7401a72e7194c9a906cfc5afa35f517d..542bcb785793c1615ebba9a28403dcd5d3f5cf2c 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -144,6 +144,7 @@ class RendererAccessibility;
 class RendererDateTimePicker;
 class RendererWebColorChooserImpl;
 class SpeechRecognitionDispatcher;
+class WakeLockDispatcher;
 class WebPluginDelegateProxy;
 struct DropData;
 struct FaviconURL;
@@ -457,6 +458,7 @@ class CONTENT_EXPORT RenderViewImpl
   virtual blink::WebPageVisibilityState visibilityState() const;
   virtual blink::WebPushClient* webPushClient();
   virtual void draggableRegionsChanged();
+  virtual blink::WebWakeLockClient* wakeLockClient();
 
 #if defined(OS_ANDROID)
   virtual void scheduleContentIntent(const blink::WebURL& intent);
@@ -1066,6 +1068,9 @@ class CONTENT_EXPORT RenderViewImpl
 
   scoped_ptr<HistoryController> history_controller_;
 
+  // The wake lock dispatcher attached to this view, lazily initialized.
+  WakeLockDispatcher* wakelock_dispatcher_;
+
 #if defined(OS_ANDROID)
   // Android Specific ---------------------------------------------------------