[Pepper] Handle plugin crash on QuotaReservation

content/browser/renderer_host/pepper/pepper_file_io_host.cc

 // Copyright 2013 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/renderer_host/pepper/pepper_file_io_host.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/files/file_util_proxy.h"
@@ skipping 83 matching lines @@
   if (!host->GetRenderFrameIDsForInstance(instance,
                                           &render_process_id_,
                                           &unused)) {
     render_process_id_ = -1;
   }
   file_message_loop_ = BrowserThread::GetMessageLoopProxyForThread(
       BrowserThread::FILE);
 }
 
 PepperFileIOHost::~PepperFileIOHost() {
-  // FileIOResource will normally send a close message, but the plugin may have
-  // crashed.
-  OnHostMsgClose(NULL, max_written_offset_);
 }
 
 int32_t PepperFileIOHost::OnResourceMessageReceived(
     const IPC::Message& msg,
     ppapi::host::HostMessageContext* context) {
   IPC_BEGIN_MESSAGE_MAP(PepperFileIOHost, msg)
     PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FileIO_Open,
                                       OnHostMsgOpen)
     PPAPI_DISPATCH_HOST_RESOURCE_CALL(PpapiHostMsg_FileIO_Touch,
                                       OnHostMsgTouch)
@@ skipping 350 matching lines @@
 
   ppapi::proxy::SerializedHandle file_handle;
   // A non-zero resource id signals NaClIPCAdapter to create a NaClQuotaDesc.
   PP_Resource quota_file_io = check_quota_ ? pp_resource() : 0;
   file_handle.set_file_handle(transit_file, open_flags, quota_file_io);
   reply_context->params.AppendHandle(file_handle);
   return true;
 }
 
 }  // namespace content