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

ui/views/touchui/touch_selection_controller_impl_unittest.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 "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/test/test_cursor_client.h"
 #include "ui/aura/window.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 48 matching lines @@
 
 namespace views {
 
 class TouchSelectionControllerImplTest : public ViewsTestBase {
  public:
   TouchSelectionControllerImplTest()
       : textfield_widget_(nullptr),
         widget_(nullptr),
         textfield_(nullptr),
         views_tsc_factory_(new ViewsTouchEditingControllerFactory) {
-    CommandLine::ForCurrentProcess()->AppendSwitch(
+    base::CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableTouchEditing);
     ui::TouchEditingControllerFactory::SetInstance(views_tsc_factory_.get());
   }
 
   ~TouchSelectionControllerImplTest() override {
     ui::TouchEditingControllerFactory::SetInstance(nullptr);
   }
 
   void SetUp() override {
     ViewsTestBase::SetUp();
@@ skipping 797 matching lines @@
   // Start touch editing; then press a key and ensure it deactivates touch
   // selection.
   StartTouchEditing();
   EXPECT_TRUE(GetSelectionController());
   generator.PressKey(ui::VKEY_A, 0);
   RunPendingMessages();
   EXPECT_FALSE(GetSelectionController());
 }
 
 }  // namespace views