When a plugin calls NPN_SetException, pass the exception along to every rende...

chrome/renderer/plugin_channel_host.cc

 // Copyright (c) 2006-2008 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/renderer/plugin_channel_host.h"
 
 #include "chrome/common/plugin_messages.h"
 
+#include "third_party/WebKit/WebKit/chromium/public/WebBindings.h"
+
 // A simple MessageFilter that will ignore all messages and respond to sync
 // messages with an error when is_listening_ is false.
 class IsListeningFilter : public IPC::ChannelProxy::MessageFilter {
  public:
   IsListeningFilter() {}
 
   // MessageFilter overrides
   virtual void OnFilterRemoved() {}
   virtual void OnFilterAdded(IPC::Channel* channel) { channel_ = channel;  }
   virtual bool OnMessageReceived(const IPC::Message& message);
@@ skipping 81 matching lines @@
 
   if (!npobject)
     proxies_[route_id] = listener;
 }
 
 void PluginChannelHost::RemoveRoute(int route_id) {
   proxies_.erase(route_id);
   PluginChannelBase::RemoveRoute(route_id);
 }
 
+void PluginChannelHost::OnControlMessageReceived(const IPC::Message& message) {
+  IPC_BEGIN_MESSAGE_MAP(PluginChannelHost, message)
+    IPC_MESSAGE_HANDLER(PluginHostMsg_SetException, OnSetException)
+    IPC_MESSAGE_UNHANDLED_ERROR()
+  IPC_END_MESSAGE_MAP()
+}
+
+void PluginChannelHost::OnSetException(const std::string& message) {
+  WebKit::WebBindings::setException(NULL, message.c_str());
+}
+
 void PluginChannelHost::OnChannelError() {
   PluginChannelBase::OnChannelError();
 
   for (ProxyMap::iterator iter = proxies_.begin();
        iter != proxies_.end(); iter++) {
     iter->second->OnChannelError();
   }
 
   proxies_.clear();
 }