Revert 129322 - revert 128949 (and dependent 129252)

chrome/browser/plugin_observer.h

Index: chrome/browser/plugin_observer.h
===================================================================
--- chrome/browser/plugin_observer.h	(revision 129385)
+++ chrome/browser/plugin_observer.h	(working copy)
@@ -15,7 +15,7 @@
 
 class GURL;
 class InfoBarDelegate;
-class PluginInstaller;
+class PluginFinder;
 class TabContentsWrapper;
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
@@ -46,11 +46,12 @@
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   void OnFindMissingPlugin(int placeholder_id, const std::string& mime_type);
 
-  void FoundMissingPlugin(int placeholder_id,
-                          const std::string& mime_type,
-                          PluginInstaller* installer);
-  void FoundPluginToUpdate(int placeholder_id,
-                           PluginInstaller* installer);
+  void FindMissingPlugin(int placeholder_id,
+                         const std::string& mime_type,
+                         PluginFinder* plugin_finder);
+  void FindPluginToUpdate(int placeholder_id,
+                          const std::string& identifier,
+                          PluginFinder* plugin_finder);
   void OnRemovePluginPlaceholderHost(int placeholder_id);
 #endif
   void OnOpenAboutPlugins();