NOT FOR SUBMIT - Windows Views HiDPI

ui/surface/accelerated_surface_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/surface/accelerated_surface_win.h"
 
 #include <windows.h>
 #include <algorithm>
 
 #include "base/bind.h"
@@ skipping 712 matching lines @@
       abs(window_size.height() - pixel_size.height());
 #else
   bool size_mismatch = size != window_size;
 #endif
   if (hidden_ && size_mismatch) {
     TRACE_EVENT2("gpu", "EarlyOut_WrongWindowSize",
                  "backwidth", size.width(), "backheight", size.height());
     TRACE_EVENT2("gpu", "EarlyOut_WrongWindowSize2",
                  "windowwidth", window_size.width(),
                  "windowheight", window_size.height());
+#if !defined(ENABLE_HIDPI)

[kevers, 2013/06/03 17:28:50]

As we are also working on removing the ENABLE_HIDPI flag and replacing with a
runtime flag, it probably makes sense to avoid adding new instances of the
compile time flag.  GetDeviceScaleFactor() returns 1 if high DPI is not enabled.
 Can probably change to early return to check if the scale factor is 1.

     return;
+#endif
   }
 #endif
 
   // Round up size so the swap chain is not continuously resized with the
   // surface, which could lead to memory fragmentation.
   const int kRound = 64;
   gfx::Size quantized_size(
       std::max(1, (size.width() + kRound - 1) / kRound * kRound),
       std::max(1, (size.height() + kRound - 1) / kRound * kRound));
 
@@ skipping 341 matching lines @@
   presenter_->Suspend();
 }
 
 void AcceleratedSurface::WasHidden() {
   presenter_->WasHidden();
 }
 
 void AcceleratedSurface::SetIsSessionLocked(bool locked) {
   presenter_->SetIsSessionLocked(locked);
 }