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

content/browser/media/webrtc_webcam_browsertest.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 "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
@@ skipping 10 matching lines @@
     base::ASCIIToUTF16(switches::kUseFakeDeviceForMediaStream);
 #else
     switches::kUseFakeDeviceForMediaStream;
 #endif
 
 bool IsUseFakeDeviceForMediaStream(const base::CommandLine::StringType& arg) {
   return arg.find(FAKE_DEVICE_FLAG) != std::string::npos;
 }
 
 void RemoveFakeDeviceFromCommandLine(base::CommandLine* command_line) {
-  CommandLine::StringVector argv = command_line->argv();
+  base::CommandLine::StringVector argv = command_line->argv();
   argv.erase(std::remove_if(argv.begin(), argv.end(),
                             IsUseFakeDeviceForMediaStream),
              argv.end());
   command_line->InitFromArgv(argv);
 }
 
 }  // namespace
 
 namespace content {
 
@@ skipping 51 matching lines @@
 
   if (result == "640x480" || result == "480x640") {
     // Don't care if the device happens to be in landscape or portrait mode
     // since we don't know how it is oriented in the lab :)
     return;
   }
   FAIL() << "Expected resolution to be 640x480 or 480x640, got" << result;
 }
 
 }  // namespace content