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

chrome/browser/plugin_data_remover.cc

 // 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.
 
 #include "chrome/browser/plugin_data_remover.h"
 
 #include "base/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/version.h"
 #include "chrome/browser/browser_thread.h"
@@ skipping 97 matching lines @@
   UMA_HISTOGRAM_TIMES("ClearPluginData.time",
                       base::Time::Now() - remove_start_time_);
   SignalDone();
 }
 
 void PluginDataRemover::OnTimeout() {
   NOTREACHED() << "Timed out";
   SignalDone();
 }
 
-void PluginDataRemover::OnMessageReceived(const IPC::Message& msg) {
+bool PluginDataRemover::OnMessageReceived(const IPC::Message& msg) {
   IPC_BEGIN_MESSAGE_MAP(PluginDataRemover, msg)
     IPC_MESSAGE_HANDLER(PluginHostMsg_ClearSiteDataResult,
                         OnClearSiteDataResult)
     IPC_MESSAGE_UNHANDLED_ERROR()
   IPC_END_MESSAGE_MAP()
+
+  return true;
 }
 
 void PluginDataRemover::OnChannelError() {
   LOG(DFATAL) << "Channel error";
   SignalDone();
 }
 
 void PluginDataRemover::SignalDone() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   if (!is_removing_)
@@ skipping 18 matching lines @@
                                                              &mime_type))
     return false;
   scoped_ptr<Version> version(
       webkit::npapi::PluginGroup::CreateVersionFromString(plugin.version));
   scoped_ptr<Version> min_version(
       Version::GetVersionFromString(g_min_flash_version));
   return plugin.enabled &&
          version.get() &&
          min_version->CompareTo(*version) == -1;
 }