Ensure that PP_Instance values are unique within a plugin process in addition...

chrome/common/pepper_plugin_registry.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_
 #define CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
+#include "ppapi/proxy/dispatcher.h"
 #include "webkit/plugins/npapi/webplugininfo.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 
 struct PepperPluginInfo {
   PepperPluginInfo();
   ~PepperPluginInfo();
 
   // Indicates internal plugins for which there's not actually a library.
   // These plugins are implemented in the Chrome binary using a separate set
@@ skipping 14 matching lines @@
   // entry points for the internal plugins.
   webkit::ppapi::PluginModule::EntryPoints internal_entry_points;
 };
 
 // This class holds references to all of the known pepper plugin modules.
 //
 // It keeps two lists. One list of preloaded in-process modules, and one list
 // is a list of all live modules (some of which may be out-of-process and hence
 // not preloaded).
 class PepperPluginRegistry
-    : public webkit::ppapi::PluginDelegate::ModuleLifetime {
+    : public webkit::ppapi::PluginDelegate::ModuleLifetime,
+      public pp::proxy::Dispatcher::Delegate {
  public:
   ~PepperPluginRegistry();
 
   static const char* kPDFPluginName;
 
   static PepperPluginRegistry* GetInstance();
 
   // Computes the list of known pepper plugins.
   //
   // This method is static so that it can be used by the browser process, which
@@ skipping 24 matching lines @@
   // the module is available to be returned by GetModule(). The module will
   // automatically unregister itself by calling PluginModuleDestroyed().
   void AddLiveModule(const FilePath& path, webkit::ppapi::PluginModule* module);
 
   // ModuleLifetime implementation.
   virtual void PluginModuleDead(webkit::ppapi::PluginModule* dead_module);
 
  private:
   PepperPluginRegistry();
 
+  // Dispatcher::Delegate implementation.
+  virtual MessageLoop* GetIPCMessageLoop();
+  virtual base::WaitableEvent* GetShutdownEvent();
+  virtual std::set<PP_Instance>* GetGloballySeenInstanceIDSet();
+
   // All known pepper plugins.
   std::vector<PepperPluginInfo> plugin_list_;
 
   // Plugins that have been preloaded so they can be executed in-process in
   // the renderer (the sandbox prevents on-demand loading).
   typedef std::map<FilePath, scoped_refptr<webkit::ppapi::PluginModule> >
       OwningModuleMap;
   OwningModuleMap preloaded_modules_;
 
   // A list of non-owning pointers to all currently-live plugin modules. This
   // includes both preloaded ones in preloaded_modules_, and out-of-process
   // modules whose lifetime is managed externally. This will contain only
   // non-crashed modules. If an out-of-process module crashes, it may
   // continue as long as there are WebKit references to it, but it will not
   // appear in this list.
   typedef std::map<FilePath, webkit::ppapi::PluginModule*> NonOwningModuleMap;
   NonOwningModuleMap live_modules_;
 };
 
 #endif  // CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_