revert 128949 (and dependent 129252)

chrome/browser/plugin_observer.h

Index: chrome/browser/plugin_observer.h
diff --git a/chrome/browser/plugin_observer.h b/chrome/browser/plugin_observer.h
index 4cce1173aa28d009543e065f41ecdd0056e808c3..44f7b0344b22bb04cdc180318128f4f8b870c327 100644
--- a/chrome/browser/plugin_observer.h
+++ b/chrome/browser/plugin_observer.h
@@ -15,7 +15,7 @@
 
 class GURL;
 class InfoBarDelegate;
-class PluginFinder;
+class PluginInstaller;
 class TabContentsWrapper;
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
@@ -46,12 +46,11 @@ class PluginObserver : public content::WebContentsObserver {
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   void OnFindMissingPlugin(int placeholder_id, const std::string& mime_type);
 
-  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 FoundMissingPlugin(int placeholder_id,
+                          const std::string& mime_type,
+                          PluginInstaller* installer);
+  void FoundPluginToUpdate(int placeholder_id,
+                           PluginInstaller* installer);
   void OnRemovePluginPlaceholderHost(int placeholder_id);
 #endif
   void OnOpenAboutPlugins();