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

media/video/capture/video_capture_device_factory.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/video/capture/video_capture_device_factory.h"
 
 #include "base/command_line.h"
 #include "media/base/media_switches.h"
 #include "media/video/capture/fake_video_capture_device_factory.h"
 #include "media/video/capture/file_video_capture_device_factory.h"
 
 namespace media {
 
 // static
 scoped_ptr<VideoCaptureDeviceFactory> VideoCaptureDeviceFactory::CreateFactory(
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
   // Use a Fake or File Video Device Factory if the command line flags are
   // present, otherwise use the normal, platform-dependent, device factory.
   if (command_line->HasSwitch(switches::kUseFakeDeviceForMediaStream)) {
     if (command_line->HasSwitch(switches::kUseFileForFakeVideoCapture)) {
       return scoped_ptr<VideoCaptureDeviceFactory>(new
           media::FileVideoCaptureDeviceFactory());
     } else {
       return scoped_ptr<VideoCaptureDeviceFactory>(new
           media::FakeVideoCaptureDeviceFactory());
     }
@@ skipping 25 matching lines @@
 // static
 VideoCaptureDeviceFactory*
 VideoCaptureDeviceFactory::CreateVideoCaptureDeviceFactory(
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   NOTIMPLEMENTED();
   return NULL;
 }
 #endif
 
 }  // namespace media