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

chrome/browser/ui/cocoa/view_id_util_browsertest.mm

 // 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 "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/devtools/devtools_window_testing.h"
@@ skipping 10 matching lines @@
 #include "components/bookmarks/test/bookmark_test_helpers.h"
 #include "extensions/common/switches.h"
 
 using content::OpenURLParams;
 using content::Referrer;
 
 // Basic sanity check of ViewID use on the mac.
 class ViewIDTest : public InProcessBrowserTest {
  public:
   ViewIDTest() : root_window_(nil) {
-    CommandLine::ForCurrentProcess()->AppendSwitch(
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
         extensions::switches::kEnableExperimentalExtensionApis);
   }
 
   void CheckViewID(ViewID view_id, bool should_have) {
     if (!root_window_)
       root_window_ = browser()->window()->GetNativeWindow();
 
     ASSERT_TRUE(root_window_);
     NSView* view = view_id_util::GetView(root_window_, view_id);
     EXPECT_EQ(should_have, !!view) << " Failed id=" << view_id;
@@ skipping 78 matching lines @@
   }
 
   // Open the 11th tab.
   browser()->OpenURL(OpenURLParams(GURL(url::kAboutBlankURL),
                                    Referrer(),
                                    NEW_BACKGROUND_TAB,
                                    ui::PAGE_TRANSITION_TYPED,
                                    false));
   CheckViewID(VIEW_ID_TAB_LAST, true);
 }