When we detect a PDF with an unsupported feature, ask the user if they want t...

chrome/browser/plugin_service.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.
 
 // This class responds to requests from renderers for the list of plugins, and
 // also a proxy object for plugin instances.
 
 #ifndef CHROME_BROWSER_PLUGIN_SERVICE_H_
 #define CHROME_BROWSER_PLUGIN_SERVICE_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/hash_tables.h"
 #include "base/scoped_vector.h"
 #include "base/singleton.h"
+#include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event_watcher.h"
 #include "build/build_config.h"
 #include "chrome/browser/plugin_process_host.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_channel_handle.h"
+#include "webkit/plugins/npapi/webplugininfo.h"
 
 #if defined(OS_WIN)
 #include "base/scoped_ptr.h"
 #include "base/win/registry.h"
 #endif
 
 #if defined(OS_LINUX)
 #include "chrome/browser/file_path_watcher/file_path_watcher.h"
 #endif
 
 #if defined(OS_CHROMEOS)
 namespace chromeos {
 class PluginSelectionPolicy;
 }
 #endif
 
 namespace IPC {
 class Message;
 }
 
 class MessageLoop;
 class Profile;
 class PluginDirWatcherDelegate;
 class ResourceDispatcherHost;
 
 namespace net {
 class URLRequestContext;
 }  // namespace net
 
-namespace webkit {
-namespace npapi {
-struct WebPluginInfo;
-}
-}
-
 // This must be created on the main thread but it's only called on the IO/file
 // thread.
 class PluginService
     : public base::WaitableEventWatcher::Delegate,
       public NotificationObserver {
  public:
+  struct OverriddenPlugin {
+    int render_process_id;
+    int render_view_id;
+    GURL url;
+    webkit::npapi::WebPluginInfo plugin;
+  };
+
   // Initializes the global instance; should be called on startup from the main
   // thread.
   static void InitGlobalInstance(Profile* profile);
 
   // Returns the PluginService singleton.
   static PluginService* GetInstance();
 
   // Load all the plugins that should be loaded for the lifetime of the browser
   // (ie, with the LoadOnStartup flag set).
   void LoadChromePlugins(ResourceDispatcherHost* resource_dispatcher_host);
@@ skipping 13 matching lines @@
 
   // Returns the plugin process host corresponding to the plugin process that
   // has been started by this service. This will start a process to host the
   // 'plugin_path' if needed. If the process fails to start, the return value
   // is NULL. Must be called on the IO thread.
   PluginProcessHost* FindOrStartPluginProcess(const FilePath& plugin_path);
 
   // Opens a channel to a plugin process for the given mime type, starting
   // a new plugin process if necessary.  This must be called on the IO thread
   // or else a deadlock can occur.
-  void OpenChannelToPlugin(const GURL& url,
+  void OpenChannelToPlugin(int render_process_id,
+                           int render_view_id,
+                           const GURL& url,
                            const std::string& mime_type,
                            PluginProcessHost::Client* client);
 
   // Gets the first allowed plugin in the list of plugins that matches
   // the given url and mime type.  Must be called on the FILE thread.
-  bool GetFirstAllowedPluginInfo(const GURL& url,
+  bool GetFirstAllowedPluginInfo(int render_process_id,
+                                 int render_view_id,
+                                 const GURL& url,
                                  const std::string& mime_type,
                                  webkit::npapi::WebPluginInfo* info,
                                  std::string* actual_mime_type);
 
   // Returns true if the given plugin is allowed to be used by a page with
   // the given URL.
   bool PrivatePluginAllowedForURL(const FilePath& plugin_path, const GURL& url);
 
+  // Safe to be called from any thread.
+  void OverridePluginForTab(OverriddenPlugin plugin);
+
   // The UI thread's message loop
   MessageLoop* main_message_loop() { return main_message_loop_; }
 
   ResourceDispatcherHost* resource_dispatcher_host() const {
     return resource_dispatcher_host_;
   }
 
   static void EnableChromePlugins(bool enable);
 
  private:
   friend struct DefaultSingletonTraits<PluginService>;
 
   // Creates the PluginService object, but doesn't actually build the plugin
   // list yet.  It's generated lazily.
   PluginService();
   ~PluginService();
 
   // base::WaitableEventWatcher::Delegate implementation.
   virtual void OnWaitableEventSignaled(base::WaitableEvent* waitable_event);
 
   // NotificationObserver implementation
   virtual void Observe(NotificationType type, const NotificationSource& source,
                        const NotificationDetails& details);
 
   void RegisterPepperPlugins();
 
   // Helper so we can do the plugin lookup on the FILE thread.
   void GetAllowedPluginForOpenChannelToPlugin(
+      int render_process_id,
+      int render_view_id,
       const GURL& url,
       const std::string& mime_type,
       PluginProcessHost::Client* client);
 
   // Helper so we can finish opening the channel after looking up the
   // plugin.
   void FinishOpenChannelToPlugin(
       const FilePath& plugin_path,
       PluginProcessHost::Client* client);
 
@@ skipping 43 matching lines @@
 #endif
 
 #if defined(OS_LINUX)
   ScopedVector<FilePathWatcher> file_watchers_;
   scoped_refptr<PluginDirWatcherDelegate> file_watcher_delegate_;
 #endif
 
   // Set to true if chrome plugins are enabled. Defaults to true.
   static bool enable_chrome_plugins_;
 
+  std::vector<OverriddenPlugin> overridden_plugins_;
+  base::Lock overridden_plugins_lock_;
+
   DISALLOW_COPY_AND_ASSIGN(PluginService);
 };
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(PluginService);
 
 #endif  // CHROME_BROWSER_PLUGIN_SERVICE_H_