Fix PPB_Flash_MessageLoop.

content/renderer/pepper/ppb_flash_message_loop_impl.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/renderer/pepper/ppb_flash_message_loop_impl.h"
 
 #include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "ppapi/c/pp_errors.h"
+#include "third_party/WebKit/public/web/WebView.h"
 
 using ppapi::thunk::PPB_Flash_MessageLoop_API;
 
 namespace content {
 
 class PPB_Flash_MessageLoop_Impl::State
     : public base::RefCounted<PPB_Flash_MessageLoop_Impl::State> {
  public:
   State() : result_(PP_OK), run_called_(false), quit_called_(false) {}
 
@@ skipping 60 matching lines @@
   }
   state_->set_run_called();
   state_->set_run_callback(callback);
 
   // It is possible that the PPB_Flash_MessageLoop_Impl object has been
   // destroyed when the nested message loop exits.
   scoped_refptr<State> state_protector(state_);
   {
     base::MessageLoop::ScopedNestableTaskAllower allow(
         base::MessageLoop::current());
+    blink::WebView::willEnterModalLoop();
+
     base::MessageLoop::current()->Run();
+
+    blink::WebView::didExitModalLoop();
   }
   // Don't access data members of the class below.
 
   return state_protector->result();
 }
 
 void PPB_Flash_MessageLoop_Impl::InternalQuit(int32_t result) {
   if (!state_->run_called() || state_->quit_called())
     return;
   state_->set_quit_called();
   state_->set_result(result);
 
   base::MessageLoop::current()->QuitNow();
 
   if (!state_->run_callback().is_null())
     state_->run_callback().Run(result);
 }
 
 }  // namespace content