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

ui/ozone/platform/dri/gbm_surface_factory.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 "ui/ozone/platform/dri/gbm_surface_factory.h"
 
 #include <gbm.h>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 142 matching lines @@
 
   scoped_refptr<GbmPixmap> pixmap(new GbmPixmap(buffer));
   if (!pixmap->Initialize(drm_))
     return NULL;
 
   return pixmap;
 }
 
 OverlayCandidatesOzone* GbmSurfaceFactory::GetOverlayCandidates(
     gfx::AcceleratedWidget w) {
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kOzoneTestSingleOverlaySupport))
     return new SingleOverlay();
   return NULL;
 }
 
 bool GbmSurfaceFactory::ScheduleOverlayPlane(
     gfx::AcceleratedWidget widget,
     int plane_z_order,
     gfx::OverlayTransform plane_transform,
     scoped_refptr<NativePixmap> buffer,
@@ skipping 38 matching lines @@
     scoped_ptr<DriWindowDelegate> delegate(new DriWindowDelegateImpl(
         widget, drm_, window_manager_, screen_manager_));
     delegate->Initialize();
     window_manager_->AddWindowDelegate(widget, delegate.Pass());
   }
 
   return window_manager_->GetWindowDelegate(widget);
 }
 
 }  // namespace ui