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

content/shell/common/webkit_test_helpers.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 "content/shell/common/webkit_test_helpers.h"
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_split.h"
@@ skipping 37 matching lines @@
   to->javascript_can_open_windows_automatically =
       from.java_script_can_open_windows_automatically;
   to->web_security_enabled =
       from.web_security_enabled;
 }
 
 // Applies settings that differ between layout tests and regular mode. Some
 // of the defaults are controlled via command line flags which are
 // automatically set for layout tests.
 void ApplyLayoutTestDefaultPreferences(WebPreferences* prefs) {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   prefs->allow_universal_access_from_file_urls = true;
   prefs->dom_paste_enabled = true;
   prefs->javascript_can_access_clipboard = true;
   prefs->xslt_enabled = true;
   prefs->xss_auditor_enabled = false;
 #if defined(OS_MACOSX)
   prefs->editing_behavior = EDITING_BEHAVIOR_MAC;
 #else
   prefs->editing_behavior = EDITING_BEHAVIOR_WIN;
 #endif
@@ skipping 35 matching lines @@
 }
 
 base::FilePath GetWebKitRootDirFilePath() {
   base::FilePath base_path;
   PathService::Get(base::DIR_SOURCE_ROOT, &base_path);
   return base_path.Append(FILE_PATH_LITERAL("third_party/WebKit"));
 }
 
 std::vector<std::string> GetSideloadFontFiles() {
   std::vector<std::string> files;
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kRegisterFontFiles)) {
     base::SplitString(
         command_line.GetSwitchValueASCII(switches::kRegisterFontFiles),
         ';',
         &files);
   }
   return files;
 }
 
 }  // namespace content