Plugin Power Saver: Throttled Plugins should block TCPSocket reads.

content/browser/ppapi_plugin_process_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
 #define CONTENT_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 72 matching lines @@
   // the plugin.
   static void DidCreateOutOfProcessInstance(
       int plugin_process_id,
       int32 pp_instance,
       const PepperRendererInstanceData& instance_data);
 
   // The opposite of DIdCreate... above.
   static void DidDeleteOutOfProcessInstance(int plugin_process_id,
                                             int32 pp_instance);
 
+  // Notification that a Plugin instance has been throttled or unthrottled.
+  static void OnPluginInstanceThrottleStateChange(int plugin_process_id,
+                                                  int32 pp_instance,
+                                                  bool is_throttled);
+
   // Returns the instances that match the specified process name.
   // It can only be called on the IO thread.
   static void FindByName(const base::string16& name,
                          std::vector<PpapiPluginProcessHost*>* hosts);
 
   // IPC::Sender implementation:
   bool Send(IPC::Message* message) override;
 
   // Opens a new channel to the plugin. The client will be notified when the
   // channel is ready or if there's an error.
@@ skipping 80 matching lines @@
  public:
   PpapiBrokerProcessHostIterator()
       : BrowserChildProcessHostTypeIterator<
           PpapiPluginProcessHost>(PROCESS_TYPE_PPAPI_BROKER) {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_