Plugin Power Saver: Implement size-based heuristic for peripheral content.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index c6baca64d653243aae5e383c6cb91e3af71246c2..c17dcf3fad339798ec5d8e6b266121d7b0ef2015 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -45,6 +45,7 @@
 #include "content/browser/media/midi_dispatcher_host.h"
 #include "content/browser/message_port_message_filter.h"
 #include "content/browser/message_port_service.h"
+#include "content/browser/plugin_content_origin_whitelist.h"
 #include "content/browser/power_save_blocker_impl.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
@@ -1179,6 +1180,11 @@ void WebContentsImpl::Init(const WebContents::CreateParams& params) {
   if (opener_)
     AddDestructionObserver(opener_);
 
+#if defined(ENABLE_PLUGINS)
+  plugin_content_origin_whitelist_.reset(
+      new PluginContentOriginWhitelist(this));
+#endif
+
   registrar_.Add(this,
                  NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
                  NotificationService::AllBrowserContextsAndSources());