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

chrome/renderer/plugins/chrome_plugin_placeholder.h

Index: chrome/renderer/plugins/chrome_plugin_placeholder.h
diff --git a/chrome/renderer/plugins/chrome_plugin_placeholder.h b/chrome/renderer/plugins/chrome_plugin_placeholder.h
index e404994e52cf257b0dc216d65bbca023ffddecfb..0495f8dba52bfeeb668a12c657d1a2f20e7bdcb7 100644
--- a/chrome/renderer/plugins/chrome_plugin_placeholder.h
+++ b/chrome/renderer/plugins/chrome_plugin_placeholder.h
@@ -9,6 +9,10 @@
 #include "content/public/renderer/context_menu_client.h"
 #include "content/public/renderer/render_process_observer.h"
 
+namespace gfx {
+class Size;
+}
+
 struct ChromeViewHostMsg_GetPluginInfo_Status;
 
 class ChromePluginPlaceholder : public plugins::LoadablePluginPlaceholder,
@@ -19,6 +23,7 @@ class ChromePluginPlaceholder : public plugins::LoadablePluginPlaceholder,
 
   // If |poster_attribute| contains relative paths, |base_url| must be
   // non-empty. This is so the placeholder can resolve the relative paths.
+  // |custom_poster_size| is ignored if it is an empty gfx::Size.
   static ChromePluginPlaceholder* CreateBlockedPlugin(
       content::RenderFrame* render_frame,
       blink::WebLocalFrame* frame,
@@ -29,7 +34,8 @@ class ChromePluginPlaceholder : public plugins::LoadablePluginPlaceholder,
       int resource_id,
       const base::string16& message,
       const std::string& poster_attribute,
-      const GURL& base_url);
+      const GURL& base_url,
+      const gfx::Size& custom_poster_size);
 
   // Creates a new WebViewPlugin with a MissingPlugin as a delegate.
   static ChromePluginPlaceholder* CreateMissingPlugin(