Associate an id with the output surface to handle lost contexts

content/browser/browser_plugin/browser_plugin_guest.cc

 // Copyright (c) 2012 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 "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
@@ skipping 1023 matching lines @@
       new BrowserPluginMsg_Attach_ACK(instance_id_, ack_params));
 
   SendQueuedMessages();
 
   RecordAction(UserMetricsAction("BrowserPlugin.Guest.Attached"));
 }
 
 void BrowserPluginGuest::OnCompositorFrameACK(
     int instance_id,
     int route_id,
+    uint32 output_surface_id,
     int renderer_host_id,
     const cc::CompositorFrameAck& ack) {
   RenderWidgetHostImpl::SendSwapCompositorFrameAck(route_id,
+                                                   output_surface_id,
                                                    renderer_host_id,
                                                    ack);
 }
 
 void BrowserPluginGuest::OnDragStatusUpdate(int instance_id,
                                             WebKit::WebDragStatus drag_status,
                                             const DropData& drop_data,
                                             WebKit::WebDragOperationsMask mask,
                                             const gfx::Point& location) {
   RenderViewHost* host = GetWebContents()->GetRenderViewHost();
@@ skipping 437 matching lines @@
                    base::Value::CreateStringValue(request_method));
   request_info.Set(browser_plugin::kURL, base::Value::CreateStringValue(url));
 
   SendMessageToEmbedder(
       new BrowserPluginMsg_RequestPermission(instance_id(),
           BrowserPluginPermissionTypeDownload, permission_request_id,
           request_info));
 }
 
 }  // namespace content