chromeos: Add support for the battery status API on chromeos.

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 cacdcb23b872a724e60b4f614cb88b3fedaedd92..98c1f1a4f9968f8a83e4328879f7083a5d414498 100644
--- a/content/renderer/render_view_impl.h
+++ b/content/renderer/render_view_impl.h
@@ -88,6 +88,7 @@ class WebPluginDelegateProxy;
 class WebUIBindings;
 
 namespace content {
+class BatteryStatusDispatcher;
 class DocumentState;
 class NavigationState;
 class P2PSocketDispatcher;
@@ -425,6 +426,7 @@ class RenderViewImpl : public RenderWidget,
   virtual WebKit::WebSpeechInputController* speechInputController(
       WebKit::WebSpeechInputListener* listener);
   virtual WebKit::WebDeviceOrientationClient* deviceOrientationClient();
+  virtual WebKit::WebBatteryStatusClient* batteryStatusClient();
   virtual void zoomLimitsChanged(double minimum_level, double maximum_level);
   virtual void zoomLevelChanged();
   virtual void registerProtocolHandler(const WebKit::WebString& scheme,
@@ -1212,6 +1214,9 @@ class RenderViewImpl : public RenderWidget,
   // Device orientation dispatcher attached to this view; lazily initialized.
   DeviceOrientationDispatcher* device_orientation_dispatcher_;
 
+  // Battery status dispatcher attached to this view; lazily initialized.
+  content::BatteryStatusDispatcher* battery_status_dispatcher_;
+
   // MediaStream dispatcher attached to this view; lazily initialized.
   MediaStreamDispatcher* media_stream_dispatcher_;