Move PepperPluginRegistry to content, while leaving the Chrome specific bits (NaCl, registration ...

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 <list>
-#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();
-
-  webkit::npapi::WebPluginInfo ToWebPluginInfo() const;
-
-  // Indicates internal plugins for which there's not actually a library.
-  // These plugins are implemented in the Chrome binary using a separate set
-  // of entry points (see internal_entry_points below).
-  // Defaults to false.
-  bool is_internal;
-
-  // True when this plugin should be run out of process. Defaults to false.
-  bool is_out_of_process;
-
-  FilePath path;  // Internal plugins have "internal-[name]" as path.
-  std::string name;
-  std::string description;
-  std::string version;
-  std::vector<webkit::npapi::WebPluginMimeType> mime_types;
-
-  // When is_internal is set, this contains the function pointers to the
-  // entry points for the internal plugins.
-  webkit::ppapi::PluginModule::EntryPoints internal_entry_points;
-};
-
-struct NaClModuleInfo {
-  NaClModuleInfo();
-  ~NaClModuleInfo();
-
-  GURL url;
-  std::string mime_type;
-};
-
-// 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 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
-  // has no need to load the pepper plugin modules. It will re-compute the
-  // plugin list every time it is called. Generally, code in the registry should
-  // be using the cached plugin_list_ instead.
-  static void ComputeList(std::vector<PepperPluginInfo>* plugins);
-
-  // Loads the (native) libraries but does not initialize them (i.e., does not
-  // call PPP_InitializeModule). This is needed by the zygote on Linux to get
-  // access to the plugins before entering the sandbox.
-  static void PreloadModules();
-
-  // Retrieves the information associated with the given plugin path. The
-  // return value will be NULL if there is no such plugin.
-  //
-  // The returned pointer is owned by the PluginRegistry.
-  const PepperPluginInfo* GetInfoForPlugin(const FilePath& path) const;
-
-  // Returns an existing loaded module for the given path. It will search for
-  // both preloaded in-process or currently active (non crashed) out-of-process
-  // plugins matching the given name. Returns NULL if the plugin hasn't been
-  // loaded.
-  webkit::ppapi::PluginModule* GetLiveModule(const FilePath& path);
-
-  // Notifies the registry that a new non-preloaded module has been created.
-  // This is normally called for out-of-process plugins. Once this is called,
-  // 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);
-
-  // We implement some Pepper plug-ins using NaCl to take advantage of NaCl's
-  // strong sandbox. Typically, these NaCl modules are stored in extensions
-  // and registered here. Not all NaCl modules need to register for a MIME
-  // type, just the ones that are responsible for rendering a particular MIME
-  // type, like application/pdf. Note: We only register NaCl modules in the
-  // browser process.
-  void RegisterNaClModule(const GURL& url, const std::string& mime_type);
-  void UnregisterNaClModule(const GURL& url);
-
-  // Call UpdatePluginListWithNaClModules() after registering or unregistering
-  // a NaCl module to see those changes reflected in the PluginList.
-  void UpdatePluginListWithNaClModules();
-
- private:
-  typedef std::list<NaClModuleInfo> NaClModuleInfoList;
-
-  PepperPluginRegistry();
-
-  // Dispatcher::Delegate implementation.
-  virtual MessageLoop* GetIPCMessageLoop();
-  virtual base::WaitableEvent* GetShutdownEvent();
-  virtual std::set<PP_Instance>* GetGloballySeenInstanceIDSet();
-
-  NaClModuleInfoList::iterator FindNaClModule(const GURL& url);
-
-  // 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_;
-
-  NaClModuleInfoList nacl_module_list_;
-
-  DISALLOW_COPY_AND_ASSIGN(PepperPluginRegistry);
-};
-
-#endif  // CHROME_COMMON_PEPPER_PLUGIN_REGISTRY_H_