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

media/base/android/browser_cdm_factory_android.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 "media/base/android/browser_cdm_factory_android.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/android/media_drm_bridge.h"
@@ skipping 20 matching lines @@
                                                         session_closed_cb,
                                                         session_error_cb));
   if (!cdm) {
     NOTREACHED() << "MediaDrmBridge cannot be created for " << key_system;
     return scoped_ptr<BrowserCdm>();
   }
 
   // TODO(xhwang/ddorwin): Pass the security level from key system.
   MediaDrmBridge::SecurityLevel security_level =
       MediaDrmBridge::SECURITY_LEVEL_3;
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kMediaDrmEnableNonCompositing)) {
     security_level = MediaDrmBridge::SECURITY_LEVEL_1;
   }
   if (!cdm->SetSecurityLevel(security_level)) {
     DVLOG(1) << "failed to set security level " << security_level;
     return scoped_ptr<BrowserCdm>();
   }
 
   return cdm.Pass();
 }
 
 }  // namespace media