Use inner HWND for accelerated rendering on windows

app/gfx/gl/gl_context_egl.cc

 // Copyright (c) 2010 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 <EGL/egl.h>
 
 #include "build/build_config.h"
 #if defined(OS_LINUX)
 #include "app/x11_util.h"
 #define EGL_HAS_PBUFFERS 1
@@ skipping 228 matching lines @@
 bool NativeViewEGLContext::SwapBuffers() {
   if (!eglSwapBuffers(g_display, surface_)) {
     VLOG(1) << "eglSwapBuffers failed with error "
             << GetLastEGLErrorString();
     return false;
   }
 
   return true;
 }
 
+void NativeViewEGLContext::SetSize(gfx::Size size) {
+#if defined(OS_WIN)
+  HWND hwnd = static_cast<HWND>(window_);
+  UINT swp_flags = SWP_NOSENDCHANGING | SWP_NOOWNERZORDER | SWP_NOCOPYBITS |
+    SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE;
+  SetWindowPos(hwnd, NULL, 0, 0, size.width(), size.height(), swp_flags);
+#endif
+}
+
 gfx::Size NativeViewEGLContext::GetSize() {
 #if defined(OS_WIN)
   RECT rect;
   if (!GetClientRect(static_cast<HWND>(window_), &rect)) {
     DCHECK(false) << "GetClientRect failed.";
     return gfx::Size();
   }
 
   return gfx::Size(rect.right - rect.left, rect.bottom - rect.top);
 #else
@@ skipping 148 matching lines @@
 void SecondaryEGLContext::SetSwapInterval(int interval) {
   DCHECK(IsCurrent());
   NOTREACHED() << "Attempt to call SetSwapInterval on a SecondaryEGLContext.";
 }
 
 EGLSurface SecondaryEGLContext::GetSurface() {
   return surface_;
 }
 
 }  // namespace gfx