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

chrome/renderer/plugins/plugin_preroller.cc

Index: chrome/renderer/plugins/plugin_preroller.cc
diff --git a/chrome/renderer/plugins/plugin_preroller.cc b/chrome/renderer/plugins/plugin_preroller.cc
index a98e77738da7197950fa75940b9b1f579f0c6a98..2d42f4e3eca049bd48c7e29c5d78652c6bc7c5e4 100644
--- a/chrome/renderer/plugins/plugin_preroller.cc
+++ b/chrome/renderer/plugins/plugin_preroller.cc
@@ -58,10 +58,14 @@ void PluginPreroller::OnThrottleStateChange() {
   if (!throttler_->IsThrottled())
     return;
 
+  PlaceholderPosterInfo poster_info;
+  poster_info.poster_attribute = keyframe_data_url_.spec();
+  poster_info.custom_poster_size = throttler_->GetSize();
+
   ChromePluginPlaceholder* placeholder =
       ChromePluginPlaceholder::CreateBlockedPlugin(
           render_frame(), frame_, params_, info_, identifier_, name_,
-          IDR_PLUGIN_POSTER_HTML, message_, keyframe_data_url_.spec(), GURL());
+          IDR_PLUGIN_POSTER_HTML, message_, poster_info);
   placeholder->SetPremadePlugin(throttler_);
   placeholder->set_power_saver_enabled(true);
   placeholder->set_allow_loading(true);