Cleanup gfx::Canvas now that 10562027 has landed

ui/views/widget/native_widget_win.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/views/widget/native_widget_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include <algorithm>
@@ skipping 2493 matching lines @@
 void NativeWidgetWin::ClientAreaSizeChanged() {
   RECT r;
   if (WidgetSizeIsClientSize())
     GetClientRect(&r);
   else
     GetWindowRect(&r);
   gfx::Size s(std::max(0, static_cast<int>(r.right - r.left)),
               std::max(0, static_cast<int>(r.bottom - r.top)));
   delegate_->OnNativeWidgetSizeChanged(s);
   if (use_layered_buffer_)
-    layered_window_contents_.reset(new gfx::Canvas(s, false));
+    layered_window_contents_.reset(
+        new gfx::Canvas(s, ui::SCALE_FACTOR_100P, false));
 }
 
 void NativeWidgetWin::UpdateDWMFrame() {
   MARGINS m = {10, 10, 10, 10};
   DwmExtendFrameIntoClientArea(GetNativeView(), &m);
 }
 
 void NativeWidgetWin::ResetWindowRegion(bool force) {
   // A native frame uses the native window region, and we don't want to mess
   // with it.
@@ skipping 242 matching lines @@
 // static
 bool NativeWidgetPrivate::IsTouchDown() {
   // This currently isn't necessary because we're not generating touch events on
   // windows.  When we do, this will need to be updated.
   return false;
 }
 
 }  // namespace internal
 
 }  // namespace views