Added automatic update for plugins based on watching file changes.

chrome/browser/plugin_service.h

Index: chrome/browser/plugin_service.h
diff --git a/chrome/browser/plugin_service.h b/chrome/browser/plugin_service.h
index d24c4e20cff106ed8ef66df21e2d659c8e99ec12..7ce0d0d88a957d8786c4206c2564c267ae0d4129 100644
--- a/chrome/browser/plugin_service.h
+++ b/chrome/browser/plugin_service.h
@@ -10,12 +10,14 @@
 #pragma once
 
 #include <string>
+#include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/hash_tables.h"
 #include "base/singleton.h"
 #include "base/synchronization/waitable_event_watcher.h"
+#include "chrome/browser/file_path_watcher/file_path_watcher.h"
 #include "chrome/browser/plugin_process_host.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
@@ -39,6 +41,7 @@ class Message;
 
 class MessageLoop;
 class Profile;
+class PluginDirWatcherDelegate;
 class ResourceDispatcherHost;
 
 namespace net {
@@ -143,6 +146,12 @@ class PluginService
       const FilePath& plugin_path,
       PluginProcessHost::Client* client);
 
+  // Registers a new FilePathWatcher for a given path.
+  static void RegisterFilePathWatcher(
+      FilePathWatcher* watcher,
+      const FilePath& path,
+      FilePathWatcher::Delegate* delegate);
+
   // mapping between plugin path and PluginProcessHost
   typedef base::hash_map<FilePath, PluginProcessHost*> PluginMap;
   PluginMap plugin_hosts_;
@@ -180,6 +189,9 @@ class PluginService
   base::WaitableEventWatcher hklm_watcher_;
 #endif
 
+  std::vector<FilePathWatcher*> file_watchers_;

[Bernhard Bauer, 2011/01/10 13:27:20]

I think you could use a scoped_vector for automatic element deletion.

[pastarmovj, 2011/01/11 17:17:26]

Done.

+  scoped_refptr<PluginDirWatcherDelegate> file_watcher_delegate_;
+
   // Set to true if chrome plugins are enabled. Defaults to true.
   static bool enable_chrome_plugins_;