Eliminate ash::internal namespace

ash/display/root_window_transformers.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 "ash/display/root_window_transformers.h"
 
 #include <cmath>
 
 #include "ash/display/display_info.h"
 #include "ash/display/display_manager.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/shell.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
 #include "ui/aura/root_window_transformer.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_property.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/transform.h"
 #include "ui/gfx/transform.h"
 
 DECLARE_WINDOW_PROPERTY_TYPE(gfx::Display::Rotation);
 
 namespace ash {
-namespace internal {
 namespace {
 
 #if defined(OS_WIN)
 DEFINE_WINDOW_PROPERTY_KEY(gfx::Display::Rotation, kRotationPropertyKey,
                            gfx::Display::ROTATE_0);
 #endif
 
 // Round near zero value to zero.
 void RoundNearZero(gfx::Transform* transform) {
   const float kEpsilon = 0.001f;
@@ skipping 234 matching lines @@
   return new AshRootWindowTransformer(root, display);
 }
 
 aura::RootWindowTransformer* CreateRootWindowTransformerForMirroredDisplay(
     const DisplayInfo& source_display_info,
     const DisplayInfo& mirror_display_info) {
   return new MirrorRootWindowTransformer(source_display_info,
                                          mirror_display_info);
 }
 
-}  // namespace internal
 }  // namespace ash