Plugin Power Saver: Fix implicitly sized and below the fold plugins.

content/renderer/pepper/pepper_plugin_instance_impl.cc

Index: content/renderer/pepper/pepper_plugin_instance_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index 6f5dafe5d5e97ad5242859f8088e3671662adf55..4d4dec4e7a80e3b8becffa3051198dbd66443a33 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -816,6 +816,9 @@ bool PepperPluginInstanceImpl::Initialize(
   if (throttler) {
     throttler_ = throttler.Pass();
     throttler_->AddObserver(this);
+    throttler_->Initialize(render_frame_, plugin_url_.GetOrigin(),
+                           module()->name(),
+                           container()->element().boundsInViewportSpace());
   }
 
   message_channel_ = MessageChannel::Create(this, &message_channel_object_);