Plugin Power Saver: Throttle 'large' plugins that appear small.

content/renderer/pepper/pepper_plugin_instance_impl.h

Index: content/renderer/pepper/pepper_plugin_instance_impl.h
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.h b/content/renderer/pepper/pepper_plugin_instance_impl.h
index e322cfb1453ff1d13f5325fa710bab8624903939..12eb6a2f02ad37f30b2ed1ae49eaa0055030b48a 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.h
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.h
@@ -209,8 +209,9 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
   bool HandleInputEvent(const blink::WebInputEvent& event,
                         blink::WebCursorInfo* cursor_info);
   PP_Var GetInstanceObject(v8::Isolate* isolate);
-  void ViewChanged(const gfx::Rect& position,
+  void ViewChanged(const gfx::Rect& window,
                    const gfx::Rect& clip,
+                   const gfx::Rect& unobscured,
                    const std::vector<gfx::Rect>& cut_outs_rects);
 
   // Handlers for composition events.
@@ -742,6 +743,8 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
   // The last state sent to the plugin. It is only valid after
   // |sent_initial_did_change_view_| is set to true.
   ppapi::ViewData last_sent_view_data_;
+  // The current unobscured portion of the plugin.
+  gfx::Rect unobscured_rect_;
 
   // Indicates if we've ever sent a didChangeView to the plugin. This ensures we
   // always send an initial notification, even if the position and clip are the