Set the scale factor for the display on Windows when in high-DPI mode.

ui/gfx/display.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/gfx/display.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "ui/base/ui_base_switches.h"
-#include "ui/base/win/dpi.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/point_f.h"
 #include "ui/gfx/size_conversions.h"
 
 namespace gfx {
 namespace {
 
 bool HasForceDeviceScaleFactorImpl() {
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kForceDeviceScaleFactor);
 }
 
 float GetForcedDeviceScaleFactorImpl() {
   double scale_in_double = 1.0;
   if (HasForceDeviceScaleFactorImpl()) {
     std::string value = CommandLine::ForCurrentProcess()->
         GetSwitchValueASCII(switches::kForceDeviceScaleFactor);
     if (!base::StringToDouble(value, &scale_in_double))
       LOG(ERROR) << "Failed to parse the default device scale factor:" << value;
   }
   return static_cast<float>(scale_in_double);
 }
 
 const int64 kInvalidDisplayIDForCompileTimeInit = -1;
 int64 internal_display_id_ = kInvalidDisplayIDForCompileTimeInit;
+
 }  // namespace
 
 const int64 Display::kInvalidDisplayID = kInvalidDisplayIDForCompileTimeInit;
 
 // static
 float Display::GetForcedDeviceScaleFactor() {
   static const float kForcedDeviceScaleFactor =
       GetForcedDeviceScaleFactorImpl();
   return kForcedDeviceScaleFactor;
 }
@@ skipping 96 matching lines @@
 
 int64 Display::InternalDisplayId() {
   return internal_display_id_;
 }
 
 void Display::SetInternalDisplayId(int64 internal_display_id) {
   internal_display_id_ = internal_display_id;
 }
 
 }  // namespace gfx