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

chrome/browser/media/chrome_webrtc_video_quality_browsertest.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 "base/base64.h"
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 89 matching lines @@
       : environment_(base::Environment::Create()) {
     test_config_ = GetParam();
   }
 
   void SetUpInProcessBrowserTestFixture() override {
     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
 
     ASSERT_TRUE(temp_working_dir_.CreateUniqueTempDir());
   }
 
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     // Set up the command line option with the expected file name. We will check
     // its existence in HasAllRequiredResources().
     webrtc_reference_video_y4m_ = test::GetReferenceFilesDir()
         .Append(test_config_.reference_video)
         .AddExtension(test::kY4mFileExtension);
     command_line->AppendSwitchPath(switches::kUseFileForFakeVideoCapture,
                                    webrtc_reference_video_y4m_);
     command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
 
     // The video playback will not work without a GPU, so force its use here.
@@ skipping 38 matching lines @@
                               const base::FilePath& captured_video_filename) {
     base::FilePath path_to_converter = base::MakeAbsoluteFilePath(
         GetBrowserDir().Append(kArgbToI420ConverterExecutable));
 
     if (!base::PathExists(path_to_converter)) {
       LOG(ERROR) << "Missing ARGB->I420 converter: should be in "
           << path_to_converter.value();
       return false;
     }
 
-    CommandLine converter_command(path_to_converter);
+    base::CommandLine converter_command(path_to_converter);
     converter_command.AppendSwitchPath("--frames_dir", GetWorkingDir());
     converter_command.AppendSwitchPath("--output_file",
                                        captured_video_filename);
     converter_command.AppendSwitchASCII("--width",
                                         base::StringPrintf("%d", width));
     converter_command.AppendSwitchASCII("--height",
                                         base::StringPrintf("%d", height));
     converter_command.AppendSwitchASCII("--delete_frames", "true");
 
     // We produce an output file that will later be used as an input to the
@@ skipping 32 matching lines @@
       return false;
     }
     if (!base::PathExists(path_to_compare_script)) {
       LOG(ERROR) << "Missing video compare script: should be in "
           << path_to_compare_script.value();
       return false;
     }
 
     // Note: don't append switches to this command since it will mess up the
     // -u in the python invocation!
-    CommandLine compare_command(CommandLine::NO_PROGRAM);
+    base::CommandLine compare_command(base::CommandLine::NO_PROGRAM);
     EXPECT_TRUE(GetPythonCommand(&compare_command));
 
     compare_command.AppendArgPath(path_to_compare_script);
     compare_command.AppendArg(base::StringPrintf("--label=%s", test_label));
     compare_command.AppendArg("--ref_video");
     compare_command.AppendArgPath(reference_video_filename);
     compare_command.AppendArg("--test_video");
     compare_command.AppendArgPath(captured_video_filename);
     compare_command.AppendArg("--frame_analyzer");
     compare_command.AppendArgPath(path_to_analyzer);
@@ skipping 99 matching lines @@
   ASSERT_TRUE(CompareVideosAndPrintResult(
       test_config_.test_name,
       test_config_.width,
       test_config_.height,
       GetWorkingDir().Append(kCapturedYuvFileName),
       test::GetReferenceFilesDir()
           .Append(test_config_.reference_video)
           .AddExtension(test::kYuvFileExtension),
       GetWorkingDir().Append(kStatsFileName)));
 }