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

ui/compositor/compositor_switches.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 "ui/compositor/compositor_switches.h"
 
 #include "base/command_line.h"
 
 namespace switches {
 
@@ skipping 10 matching lines @@
 
 const char kUIEnableZeroCopy[] = "ui-enable-zero-copy";
 
 const char kUIShowPaintRects[] = "ui-show-paint-rects";
 
 }  // namespace switches
 
 namespace ui {
 
 bool IsUIImplSidePaintingEnabled() {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
 
   return command_line.HasSwitch(switches::kUIEnableImplSidePainting);
 }
 
 bool IsUIZeroCopyEnabled() {
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
 
   return command_line.HasSwitch(switches::kUIEnableZeroCopy);
 }
 
 }  // namespace ui