Set disabled style on GPU window and plugin intermediate window so mouse mess...

chrome/browser/renderer_host/render_widget_host_view_win.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 "chrome/browser/renderer_host/render_widget_host_view_win.h"
 
 #include "app/gfx/canvas.h"
 #include "app/gfx/gdi_util.h"
 #include "app/l10n_util.h"
 #include "app/l10n_util_win.h"
@@ skipping 422 matching lines @@
     wcex.hIcon          = 0;
     wcex.hCursor        = 0;
     wcex.hbrBackground  = reinterpret_cast<HBRUSH>(COLOR_WINDOW+1);
     wcex.lpszMenuName   = 0;
     wcex.lpszClassName  = kWrapperNativeWindowClassName;
     wcex.hIconSm        = 0;
     window_class = RegisterClassEx(&wcex);
   }
   DCHECK(window_class);
 
+  // TODO(apatrick): the parent window is disabled if the plugin window is
+  // disabled so that mouse messages from the plugin window are passed on to the
+  // browser window. This does not work for regular plugins because it prevents
+  // them from receiving mouse and keyboard input. WS_DISABLED is not
+  // needed when the GPU process stops using child windows for 3D rendering.
+  DWORD enabled_style = ::GetWindowLong(window, GWL_STYLE) & WS_DISABLED;
   HWND parent = CreateWindowEx(
       WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_RIGHTSCROLLBAR,
       MAKEINTATOM(window_class), 0,
-      WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
+      WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | enabled_style,
       0, 0, 0, 0, ::GetParent(window), 0, GetModuleHandle(NULL), 0);
   DCHECK(parent);
   ::SetParent(window, parent);
   ChromeThread::PostTask(
       ChromeThread::IO, FROM_HERE,
       new NotifyPluginProcessHostTask(window, parent));
   return parent;
 }
 
 void RenderWidgetHostViewWin::Focus() {
@@ skipping 1046 matching lines @@
     SetFocus();
   }
 }
 
 void RenderWidgetHostViewWin::ShutdownHost() {
   shutdown_factory_.RevokeAll();
   if (render_widget_host_)
     render_widget_host_->Shutdown();
   // Do not touch any members at this point, |this| has been deleted.
 }