Fix media player painting bug.

webkit/glue/plugins/webplugin_delegate_impl_mac.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 #import <QuartzCore/QuartzCore.h>
 
 #include "webkit/glue/plugins/webplugin_delegate_impl.h"
 
 #include <string>
@@ skipping 249 matching lines @@
       surface_(NULL),
       renderer_(nil),
       plugin_has_focus_(false),
       has_webkit_focus_(false),
       containing_view_has_focus_(false),
       containing_window_has_focus_(false),
       initial_window_focus_(false),
       container_is_visible_(false),
       have_called_set_window_(false),
       external_drag_tracker_(new ExternalDragTracker()),
-      handle_event_depth_(0) {
+      handle_event_depth_(0),
+      first_set_window_call_(true) {
   memset(&window_, 0, sizeof(window_));
 #ifndef NP_NO_CARBON
   memset(&np_cg_context_, 0, sizeof(np_cg_context_));
 #endif
 #ifndef NP_NO_QUICKDRAW
   memset(&qd_port_, 0, sizeof(qd_port_));
 #endif
   instance->set_windowless(true);
 }
 
@@ skipping 858 matching lines @@
     return;
   }
 
   qd_manager_->SetFastPathEnabled(enabled);
   qd_port_.port = qd_manager_->port();
   WindowlessSetWindow();
   // Send a paint event so that the new buffer gets updated immediately.
   WindowlessPaint(buffer_context_, clip_rect_);
 }
 #endif  // !NP_NO_QUICKDRAW