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

content/browser/renderer_host/media/media_stream_ui_proxy.cc

 // Copyright 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 "content/browser/renderer_host/media/media_stream_ui_proxy.h"
 
 #include "base/command_line.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 250 matching lines @@
   camera_access_ = access;
 }
 
 void FakeMediaStreamUIProxy::RequestAccess(
     const MediaStreamRequest& request,
     const ResponseCallback& response_callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   response_callback_ = response_callback;
 
-  if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-      switches::kUseFakeUIForMediaStream) == "deny") {
+  if (base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kUseFakeUIForMediaStream) == "deny") {
     // Immediately deny the request.
     BrowserThread::PostTask(
           BrowserThread::IO, FROM_HERE,
           base::Bind(&MediaStreamUIProxy::ProcessAccessRequestResponse,
                      weak_factory_.GetWeakPtr(),
                      MediaStreamDevices(),
                      MEDIA_DEVICE_PERMISSION_DENIED));
     return;
   }
 
@@ skipping 42 matching lines @@
     const GURL& security_origin,
     MediaStreamType type,
     int render_process_id,
     int render_frame_id,
     const base::Callback<void(bool)>& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||
          type == MEDIA_DEVICE_VIDEO_CAPTURE);
 
   bool have_access = false;
-  if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-      switches::kUseFakeUIForMediaStream) != "deny") {
+  if (base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kUseFakeUIForMediaStream) != "deny") {
     have_access =
         type == MEDIA_DEVICE_AUDIO_CAPTURE ? mic_access_ : camera_access_;
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&MediaStreamUIProxy::OnCheckedAccess,
                  weak_factory_.GetWeakPtr(),
                  callback,
                  have_access));
   return;
 }
 
 void FakeMediaStreamUIProxy::OnStarted(
     const base::Closure& stop_callback,
     const WindowIdCallback& window_id_callback) {}
 
 }  // namespace content