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

chrome/browser/ui/views/profiles/profile_chooser_view_browsertest.cc

 // Copyright 2014 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/ui/views/profiles/profile_chooser_view.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/histogram_tester.h"
@@ skipping 18 matching lines @@
 #include "content/public/test/test_utils.h"
 #include "ui/views/controls/button/label_button.h"
 
 class ProfileChooserViewBrowserTest : public InProcessBrowserTest {
  public:
   ProfileChooserViewBrowserTest();
   ~ProfileChooserViewBrowserTest() override;
 
  protected:
   void SetUp() override;
-  void SetUpCommandLine(CommandLine* command_line) override;
+  void SetUpCommandLine(base::CommandLine* command_line) override;
   void OpenProfileChooserView();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ProfileChooserViewBrowserTest);
 };
 
 ProfileChooserViewBrowserTest::ProfileChooserViewBrowserTest() {
 }
 
 ProfileChooserViewBrowserTest::~ProfileChooserViewBrowserTest() {
 }
 
 void ProfileChooserViewBrowserTest::SetUp() {
   InProcessBrowserTest::SetUp();
   DCHECK(switches::IsNewAvatarMenu());
 }
 
 void ProfileChooserViewBrowserTest::SetUpCommandLine(
-    CommandLine* command_line) {
-  switches::EnableNewAvatarMenuForTesting(CommandLine::ForCurrentProcess());
+    base::CommandLine* command_line) {
+  switches::EnableNewAvatarMenuForTesting(
+      base::CommandLine::ForCurrentProcess());
 }
 
 void ProfileChooserViewBrowserTest::OpenProfileChooserView() {
   BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser());
   NewAvatarButton* button = browser_view->frame()->GetNewAvatarMenuButton();
   ASSERT_TRUE(button);
 
   ProfileChooserView::clear_close_on_deactivate_for_testing();
   ui::MouseEvent mouse_ev(ui::ET_MOUSE_RELEASED, gfx::Point(), gfx::Point(), 0,
                           0);
@@ skipping 19 matching lines @@
     return;
 
   Profile* profile = browser()->profile();
   profile->GetPrefs()->SetInteger(prefs::kProfileAvatarTutorialShown, 0);
 
   ASSERT_NO_FATAL_FAILURE(OpenProfileChooserView());
 
   histograms.ExpectUniqueSample("Profile.NewAvatarMenu.Upgrade",
       ProfileMetrics::PROFILE_AVATAR_MENU_UPGRADE_VIEW, 1);
 }