Make callers of CommandLine use it via the base:: namespace.

components/copresence/rpc/rpc_handler.cc

 // Copyright 2014 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 "components/copresence/rpc/rpc_handler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/guid.h"
 #include "base/logging.h"
@@ skipping 604 matching lines @@
                             response_handler);
 }
 
 void RpcHandler::SendHttpPost(net::URLRequestContextGetter* url_context_getter,
                               const std::string& rpc_name,
                               const std::string& api_key,
                               const std::string& auth_token,
                               scoped_ptr<MessageLite> request_proto,
                               const PostCleanupCallback& callback) {
   // Create the base URL to call.
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   const std::string copresence_server_host =
       command_line->HasSwitch(switches::kCopresenceServer) ?
       command_line->GetSwitchValueASCII(switches::kCopresenceServer) :
       kDefaultCopresenceServer;
 
   // Create the request and keep a pointer until it completes.
   HttpPost* http_post = new HttpPost(
       url_context_getter,
       copresence_server_host,
       rpc_name,
       api_key,
       auth_token,
       command_line->GetSwitchValueASCII(switches::kCopresenceTracingToken),
       *request_proto);
 
   http_post->Start(base::Bind(callback, http_post));
   pending_posts_.insert(http_post);
 }
 
 }  // namespace copresence