Eliminate ash::internal namespace

ash/display/event_transformation_handler.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/event_transformation_handler.h"
 
 #include <cmath>
 
 #include "ash/shell.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/events/event.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 
 #if defined(OS_CHROMEOS)
 #include "ui/display/chromeos/output_configurator.h"
 #endif  // defined(OS_CHROMEOS)
 
 namespace ash {
-namespace internal {
 namespace {
 
 // Boost factor for non-integrated displays.
 const float kBoostForNonIntegrated = 1.20f;
 }
 
 EventTransformationHandler::EventTransformationHandler()
     : transformation_mode_(TRANSFORM_AUTO) {
 }
 
@@ skipping 48 matching lines @@
                << " touch display found";
     return;
   }
 
   float area_ratio_sqrt = std::sqrt(area_ratio_map.begin()->second);
   event->set_radius_x(event->radius_x() * area_ratio_sqrt);
   event->set_radius_y(event->radius_y() * area_ratio_sqrt);
 }
 #endif  // defined(OS_CHROMEOS)
 
-}  // namespace internal
 }  // namespace ash