Plugin Power Saver: Make PPS work well with prerendered pages.

content/renderer/pepper/plugin_module.cc

Index: content/renderer/pepper/plugin_module.cc
diff --git a/content/renderer/pepper/plugin_module.cc b/content/renderer/pepper/plugin_module.cc
index 1cbdcaf34f616de3f66c6012ce99826e713e6aef..b26e0e5f0b555b390522625dfe8111f76ff85d9c 100644
--- a/content/renderer/pepper/plugin_module.cc
+++ b/content/renderer/pepper/plugin_module.cc
@@ -254,6 +254,14 @@ PP_Bool IsPeripheral(PP_Instance instance_id) {
   return PP_FromBool(plugin_instance->throttler()->power_saver_enabled());
 }
 
+PP_Bool IsThrottled(PP_Instance instance_id) {
+  PepperPluginInstanceImpl* plugin_instance =
+      host_globals->GetInstance(instance_id);
+  if (!plugin_instance || !plugin_instance->throttler())
+    return PP_FALSE;
+  return PP_FromBool(plugin_instance->throttler()->IsThrottled());
+}
+
 void SimulateInputEvent(PP_Instance instance, PP_Resource input_event) {
   PepperPluginInstanceImpl* plugin_instance =
       host_globals->GetInstance(instance);
@@ -303,6 +311,7 @@ const PPB_Testing_Private testing_interface = {
     &GetLiveObjectsForInstance,
     &IsOutOfProcess,
     &IsPeripheral,
+    &IsThrottled,
     &SimulateInputEvent,
     &GetDocumentURL,
     &GetLiveVars,