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

content/renderer/pepper/plugin_instance_throttler_impl.h

Index: content/renderer/pepper/plugin_instance_throttler_impl.h
diff --git a/content/renderer/pepper/plugin_instance_throttler_impl.h b/content/renderer/pepper/plugin_instance_throttler_impl.h
index b223cd26b613c65c5de327ad5676ec3b2e98e553..cb3701fa4f30290b3c4742be358c771a6d0b60aa 100644
--- a/content/renderer/pepper/plugin_instance_throttler_impl.h
+++ b/content/renderer/pepper/plugin_instance_throttler_impl.h
@@ -11,6 +11,7 @@
 #include "content/common/content_export.h"
 #include "content/public/renderer/plugin_instance_throttler.h"
 #include "ppapi/shared_impl/ppb_view_shared.h"
+#include "ui/gfx/geometry/size.h"
 
 namespace blink {
 class WebInputEvent;
@@ -36,6 +37,7 @@ class CONTENT_EXPORT PluginInstanceThrottlerImpl
   void MarkPluginEssential(PowerSaverUnthrottleMethod method) override;
   void SetHiddenForPlaceholder(bool hidden) override;
   blink::WebPlugin* GetWebPlugin() const override;
+  const gfx::Size& GetSize() const override;
 
   void SetWebPlugin(blink::WebPlugin* web_plugin);
 
@@ -52,7 +54,7 @@ class CONTENT_EXPORT PluginInstanceThrottlerImpl
   void Initialize(RenderFrameImpl* frame,
                   const GURL& content_origin,
                   const std::string& plugin_module_name,
-                  const blink::WebRect& bounds);
+                  const gfx::Size& size);
 
   // Called when the plugin flushes it's graphics context. Supplies the
   // throttler with a candidate to use as the representative keyframe.
@@ -94,6 +96,9 @@ class CONTENT_EXPORT PluginInstanceThrottlerImpl
   // Number of frames we've examined to find a keyframe.
   int frames_examined_;
 
+  // Plugin dimensions as of initialization.
+  gfx::Size initialized_size_;

[Lei Zhang, 2015/03/18 00:48:12]

const?

[tommycli, 2015/03/19 22:10:13]

Can not, since it's assigned in Initialize, right?

+
   ObserverList<Observer> observer_list_;
 
   base::WeakPtrFactory<PluginInstanceThrottlerImpl> weak_factory_;