Fix for DWM crash....

chrome/browser/views/frame/browser_frame_win.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/views/frame/browser_frame_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include "app/resource_bundle.h"
@@ skipping 239 matching lines @@
 views::RootView* BrowserFrameWin::CreateRootView() {
   root_view_ = new BrowserRootView(this);
   return root_view_;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserFrame, private:
 
 void BrowserFrameWin::UpdateDWMFrame() {
   // Nothing to do yet.
-  if (!GetClientView() || !browser_view_->IsBrowserTypeNormal())
+  if (!GetClientView() || !browser_view_->IsBrowserTypeNormal() ||
+      !win_util::ShouldUseVistaFrame())
     return;
 
   // In fullscreen mode, we don't extend glass into the client area at all,
   // because the GDI-drawn text in the web content composited over it will
   // become semi-transparent over any glass area.
   MARGINS margins = { 0 };
   if (!IsMaximized() && !IsFullscreen()) {
     margins.cxLeftWidth = kClientEdgeThickness + 1;
     margins.cxRightWidth = kClientEdgeThickness + 1;
     margins.cyBottomHeight = kClientEdgeThickness + 1;
   }
   // In maximized mode, we only have a titlebar strip of glass, no side/bottom
   // borders.
   if (!browser_view_->IsFullscreen()) {
     margins.cyTopHeight =
         GetBoundsForTabStrip(browser_view_->tabstrip()).bottom();
   }
   DwmExtendFrameIntoClientArea(GetNativeView(), &margins);
 }