Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

chrome/test/automation/tab_proxy.h

 // Copyright (c) 2010 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 CHROME_TEST_AUTOMATION_TAB_PROXY_H_
 #define CHROME_TEST_AUTOMATION_TAB_PROXY_H_
 #pragma once
 
 #include "build/build_config.h"  // NOLINT
 
@@ skipping 387 matching lines @@
 
   // These handlers issue asynchronous Reload, Stop and SaveAs notifications to
   // the chrome instance.
   void ReloadAsync();
   void StopAsync();
   void SaveAsAsync();
 
   // Calls delegates
   void AddObserver(TabProxyDelegate* observer);
   void RemoveObserver(TabProxyDelegate* observer);
-  void OnMessageReceived(const IPC::Message& message);
+  bool OnMessageReceived(const IPC::Message& message);
   void OnChannelError();
  protected:
   virtual ~TabProxy();
 
   // Override JavaScriptExecutionController methods.
   // Executes |script| and gets the response JSON. Returns true on success.
   bool ExecuteJavaScriptAndGetJSON(const std::string& script,
                                    std::string* json) WARN_UNUSED_RESULT;
 
   // Called when tracking the first object. Used for reference counting
   // purposes.
   void FirstObjectAdded();
 
   // Called when no longer tracking any objects. Used for reference counting
   // purposes.
   void LastObjectRemoved();
 
  private:
   Lock list_lock_;  // Protects the observers_list_.
   ObserverList<TabProxyDelegate> observers_list_;
   DISALLOW_COPY_AND_ASSIGN(TabProxy);
 };
 
 #endif  // CHROME_TEST_AUTOMATION_TAB_PROXY_H_