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

ui/views/widget/widget_interactive_uitest.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/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
@@ skipping 741 matching lines @@
   init_params.native_widget = new PlatformDesktopNativeWidget(&widget);
 #endif  // !defined(OS_CHROMEOS)
   widget.Init(init_params);
 
   widget.Show();
   EXPECT_FALSE(widget.IsActive());
 }
 
 // Test that touch selection quick menu is not activated when opened.
 TEST_F(WidgetTestInteractive, TouchSelectionQuickMenuIsNotActivated) {
-  CommandLine::ForCurrentProcess()->AppendSwitch(switches::kEnableTouchEditing);
+  base::CommandLine::ForCurrentProcess()->AppendSwitch(
+      switches::kEnableTouchEditing);
 #if defined(OS_WIN)
   views_delegate().set_use_desktop_native_widgets(true);
 #endif  // !defined(OS_WIN)
 
   Widget widget;
   Widget::InitParams init_params =
       CreateParams(Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   init_params.bounds = gfx::Rect(0, 0, 200, 200);
   init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   widget.Init(init_params);
@@ skipping 387 matching lines @@
   ui::EventDispatchDetails details = widget1.GetNativeWindow()->
       GetHost()->event_processor()->OnEventFromSource(&mouse_event);
   ASSERT_FALSE(details.dispatcher_destroyed);
   EXPECT_TRUE(widget1.GetAndClearGotMouseEvent());
   EXPECT_FALSE(widget2.GetAndClearGotMouseEvent());
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace test
 }  // namespace views