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

chrome/browser/download/save_package_file_picker.cc

 // Copyright (c) 2012 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 "chrome/browser/download/save_package_file_picker.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/metrics/histogram.h"
@@ skipping 97 matching lines @@
   if (!extra_extension.empty())
     extensions.push_back(extra_extension);
   file_type_info->extensions.push_back(extensions);
 }
 #endif
 
 }  // anonymous namespace
 
 bool SavePackageFilePicker::ShouldSaveAsMHTML() const {
 #if !defined(OS_CHROMEOS)
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-             switches::kSavePageAsMHTML))
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kSavePageAsMHTML))
     return false;
 #endif
   return can_save_as_complete_;
 }
 
 SavePackageFilePicker::SavePackageFilePicker(
     content::WebContents* web_contents,
     const base::FilePath& suggested_path,
     const base::FilePath::StringType& default_extension,
     bool can_save_as_complete,
@@ skipping 149 matching lines @@
   }
 #endif
 
   callback_.Run(path_copy, save_type,
                 base::Bind(&OnSavePackageDownloadCreated));
 }
 
 void SavePackageFilePicker::FileSelectionCanceled(void* unused_params) {
   delete this;
 }