Implement "iframe shim" behavior for windowed plugins....

chrome/browser/render_widget_host.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/render_widget_host.h"
 
-#include "base/gfx/bitmap_header.h"
+#include "base/gfx/gdi_util.h"
 #include "base/message_loop.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/render_process_host.h"
 #include "chrome/browser/render_widget_helper.h"
 #include "chrome/browser/render_widget_host_view.h"
 #include "chrome/common/mru_cache.h"
 #include "chrome/common/win_util.h"
 #include "chrome/views/view.h"
 #include "webkit/glue/webcursor.h"
 #include "webkit/glue/webinputevent.h"
@@ skipping 426 matching lines @@
 
     if (move.visible)
       flags |= SWP_SHOWWINDOW;
     else
       flags |= SWP_HIDEWINDOW;
 
     HRGN hrgn = ::CreateRectRgn(move.clip_rect.x(),
                                 move.clip_rect.y(),
                                 move.clip_rect.right(),
                                 move.clip_rect.bottom());
+    gfx::SubtractRectanglesFromRegion(hrgn, move.cutout_rects);
 
     // Note: System will own the hrgn after we call SetWindowRgn,
     // so we don't need to call DeleteObject(hrgn)
     ::SetWindowRgn(move.window, hrgn, !move.clip_rect.IsEmpty());
 
     defer_window_pos_info = ::DeferWindowPos(defer_window_pos_info,
                                              move.window, NULL,
                                              move.window_rect.x(),
                                              move.window_rect.y(),
                                              move.window_rect.width(),
@@ skipping 364 matching lines @@
 
 void RenderWidgetHost::RendererExited() {
   BackingStoreManager::RemoveBackingStore(this);
 }
 
 void RenderWidgetHost::SystemThemeChanged() {
   Send(new ViewMsg_ThemeChanged(routing_id_));
 }