Fix handling of Mac accelerated plugin layers across tab switch.

chrome/browser/renderer_host/accelerated_surface_container_manager_mac.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/accelerated_surface_container_manager_mac.h"
 
 #include "base/logging.h"
 #include "chrome/browser/renderer_host/accelerated_surface_container_mac.h"
 #include "webkit/glue/webplugin.h"
 
@@ skipping 63 matching lines @@
   }
 
   // Unbind any texture from the texture target to ensure that the
   // next time through we will have to re-bind the texture and thereby
   // pick up modifications from the other process.
   glBindTexture(target, 0);
 
   glFlush();
 }
 
+void AcceleratedSurfaceContainerManagerMac::ForceTextureReload() {
+  for (PluginWindowToContainerMap::const_iterator i =
+          plugin_window_to_container_map_.begin();
+       i != plugin_window_to_container_map_.end(); ++i) {
+    AcceleratedSurfaceContainerMac* container = i->second;
+    container->ForceTextureReload();
+  }
+}
+
 void AcceleratedSurfaceContainerManagerMac::EnqueueTextureForDeletion(
     GLuint texture) {
   if (texture) {
     textures_pending_deletion_.push_back(texture);
   }
 }
 
 AcceleratedSurfaceContainerMac*
     AcceleratedSurfaceContainerManagerMac::MapIDToContainer(
         gfx::PluginWindowHandle id) {
   PluginWindowToContainerMap::const_iterator i =
       plugin_window_to_container_map_.find(id);
   if (i != plugin_window_to_container_map_.end())
     return i->second;
 
   LOG(ERROR) << "Request for plugin container for unknown window id " << id;
 
   return NULL;
 }