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

chrome/browser/browser_process_platform_part_aurawin.cc

 // Copyright (c) 2013 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/browser_process_platform_part_aurawin.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/process/kill.h"
@@ skipping 20 matching lines @@
 }
 
 BrowserProcessPlatformPart::~BrowserProcessPlatformPart() {
 }
 
 void BrowserProcessPlatformPart::OnMetroViewerProcessTerminated() {
   metro_viewer_process_host_.reset(NULL);
 }
 
 void BrowserProcessPlatformPart::PlatformSpecificCommandLineProcessing(
-    const CommandLine& command_line) {
+    const base::CommandLine& command_line) {
   // Check for Windows 8 specific commandlines requesting that this process
   // either connect to an existing viewer or launch a new viewer and
   // synchronously wait for it to connect.
 
   bool launch = command_line.HasSwitch(switches::kViewerLaunchViaAppId);
   bool connect = (launch ||
                   (command_line.HasSwitch(switches::kViewerConnect) &&
                    !metro_viewer_process_host_.get()));
   if (!connect)
     return;
@@ skipping 23 matching lines @@
       if (mode == upgrade_util::RELAUNCH_MODE_DESKTOP) {
         // Metro -> Desktop
         chrome::ActivateDesktopHelper(chrome::ASH_TERMINATE);
       } else {
         // Metro -> Metro
         ChromeMetroViewerProcessHost::HandleMetroExit();
       }
     }
   }
 }