Track NPObject ownership by the originating plugins' NPP identifier. [2/3] (Chrome)

content/renderer/webplugin_delegate_proxy.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/webplugin_delegate_proxy.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #elif defined(USE_X11)
 #include <cairo/cairo.h>
@@ skipping 194 matching lines @@
       uses_shared_bitmaps_(false),
 #if defined(OS_MACOSX)
       uses_compositor_(false),
 #elif defined(OS_WIN)
       dummy_activation_window_(NULL),
 #endif
       window_(gfx::kNullPluginWindow),
       mime_type_(mime_type),
       instance_id_(MSG_ROUTING_NONE),
       npobject_(NULL),
+      npp_(new NPP_t),
       sad_plugin_(NULL),
       invalidate_pending_(false),
       transparent_(false),
       front_buffer_index_(0),
       page_url_(render_view_->webview()->mainFrame()->document().url()) {
 }
 
 WebPluginDelegateProxy::~WebPluginDelegateProxy() {
   if (npobject_)
     WebBindings::releaseObject(npobject_);
@@ skipping 511 matching lines @@
   Send(new PluginMsg_GetPluginScriptableObject(instance_id_, &route_id));
   if (route_id == MSG_ROUTING_NONE)
     return NULL;
 
   npobject_ = NPObjectProxy::Create(
       channel_host_.get(), route_id, 0, page_url_);
 
   return WebBindings::retainObject(npobject_);
 }
 
+NPP WebPluginDelegateProxy::GetPluginNPP() {
+  // Return a dummy NPP for WebKit to use to identify this plugin.
+  return npp_.get();
+}
+
 bool WebPluginDelegateProxy::GetFormValue(string16* value) {
   bool success = false;
   Send(new PluginMsg_GetFormValue(instance_id_, value, &success));
   return success;
 }
 
 void WebPluginDelegateProxy::DidFinishLoadWithReason(
     const GURL& url, NPReason reason, int notify_id) {
   Send(new PluginMsg_DidFinishLoadWithReason(
       instance_id_, url, reason, notify_id));
@@ skipping 444 matching lines @@
 
 void WebPluginDelegateProxy::OnURLRedirectResponse(bool allow,
                                                    int resource_id) {
   if (!plugin_)
     return;
 
   plugin_->URLRedirectResponse(allow, resource_id);
 }
 
 }  // namespace content