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

chrome/browser/profile_import_process_host.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_BROWSER_PROFILE_IMPORT_PROCESS_HOST_H_
 #define CHROME_BROWSER_PROFILE_IMPORT_PROCESS_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 55 matching lines @@
     virtual void OnFavIconsImportGroup(
         const std::vector<history::ImportedFavIconUsage>& fav_icons_group) {}
 
     virtual void OnPasswordFormImportReady(
         const webkit_glue::PasswordForm& form) {}
 
     virtual void OnKeywordsImportReady(
         const std::vector<TemplateURL>& template_urls,
             int default_keyword_index, bool unique_on_host_and_path) {}
 
-    virtual void OnMessageReceived(const IPC::Message& message);
+    virtual bool OnMessageReceived(const IPC::Message& message);
 
    protected:
     friend class base::RefCountedThreadSafe<ImportProcessClient>;
 
     virtual ~ImportProcessClient();
 
    private:
     friend class ProfileImportProcessHost;
 
     DISALLOW_COPY_AND_ASSIGN(ImportProcessClient);
@@ skipping 28 matching lines @@
  protected:
   // Allow these methods to be overridden for tests.
   virtual FilePath GetProfileImportProcessCmd();
 
  private:
   // Launch the new process.
   bool StartProcess();
 
   // Called by the external importer process to send messages back to the
   // ImportProcessClient.
-  virtual void OnMessageReceived(const IPC::Message& message);
+  virtual bool OnMessageReceived(const IPC::Message& message);
 
   // Overridden from BrowserChildProcessHost:
   virtual void OnProcessCrashed(int exit_code);
   virtual bool CanShutdown();
 
   // Receives messages to be passed back to the importer host.
   scoped_refptr<ImportProcessClient> import_process_client_;
 
   // The thread where the import_process_client_ lives.
   BrowserThread::ID thread_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileImportProcessHost);
 };
 
 #endif  // CHROME_BROWSER_PROFILE_IMPORT_PROCESS_HOST_H_