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

chrome/browser/prefs/chrome_pref_service_unittest.cc

 // Copyright (c) 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/command_line.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 28 matching lines @@
       prefs.FindPreference(prefs::kCloudPrintProxyEnabled);
   ASSERT_TRUE(pref);
   const base::Value* value = pref->GetValue();
   ASSERT_TRUE(value);
   EXPECT_EQ(base::Value::TYPE_BOOLEAN, value->GetType());
   bool actual_bool_value = true;
   EXPECT_TRUE(value->GetAsBoolean(&actual_bool_value));
   EXPECT_FALSE(actual_bool_value);
 
   // Change the command line.
-  CommandLine cmd_line(CommandLine::NO_PROGRAM);
+  base::CommandLine cmd_line(base::CommandLine::NO_PROGRAM);
   cmd_line.AppendSwitch(switches::kEnableCloudPrintProxy);
 
   // Call UpdateCommandLinePrefStore and check to see if the value has changed.
   prefs.UpdateCommandLinePrefStore(new CommandLinePrefStore(&cmd_line));
   pref = prefs.FindPreference(prefs::kCloudPrintProxyEnabled);
   ASSERT_TRUE(pref);
   value = pref->GetValue();
   ASSERT_TRUE(value);
   EXPECT_EQ(base::Value::TYPE_BOOLEAN, value->GetType());
   actual_bool_value = false;
@@ skipping 70 matching lines @@
   const char kDefaultFont[] = "Times";
 #elif defined(OS_CHROMEOS)
   const char kDefaultFont[] = "Tinos";
 #else
   const char kDefaultFont[] = "Times New Roman";
 #endif
   EXPECT_EQ(base::ASCIIToUTF16(kDefaultFont),
             webkit_prefs.standard_font_family_map[prefs::kWebKitCommonScript]);
   EXPECT_TRUE(webkit_prefs.javascript_enabled);
 }