content: Use base::MessageLoop.

content/browser/plugin_service_impl.cc

 // 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.
 
 #include "content/browser/plugin_service_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 563 matching lines @@
     const std::string kPluginExtension = ".plugin";
     if (EndsWith(plugin_name, ASCIIToUTF16(kPluginExtension), true))
       plugin_name.erase(plugin_name.length() - kPluginExtension.length());
 #endif  // OS_MACOSX
   }
   return plugin_name;
 }
 
 void PluginServiceImpl::GetPlugins(const GetPluginsCallback& callback) {
   scoped_refptr<base::MessageLoopProxy> target_loop(
-      MessageLoop::current()->message_loop_proxy());
+      base::MessageLoop::current()->message_loop_proxy());
 
   if (LoadPluginListInProcess()) {
     BrowserThread::GetBlockingPool()->
         PostSequencedWorkerTaskWithShutdownBehavior(
             plugin_list_token_,
             FROM_HERE,
             base::Bind(&PluginServiceImpl::GetPluginsInternal,
                        base::Unretained(this),
                        target_loop, callback),
         base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
@@ skipping 189 matching lines @@
 void PluginServiceImpl::GetInternalPlugins(
     std::vector<webkit::WebPluginInfo>* plugins) {
   plugin_list_->GetInternalPlugins(plugins);
 }
 
 webkit::npapi::PluginList* PluginServiceImpl::GetPluginList() {
   return plugin_list_;
 }
 
 }  // namespace content