Remove PluginFinder async interface

chrome/browser/plugins/plugin_finder.h

 // Copyright (c) 2012 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_BROWSER_PLUGINS_PLUGIN_FINDER_H_
 #define CHROME_BROWSER_PLUGINS_PLUGIN_FINDER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 19 matching lines @@
 // This class should be created and initialized by calling
 // |GetInstance()| and |Init()| on the UI thread.
 // After that it can be safely used on any other thread.
 class PluginFinder {
  public:
   static PluginFinder* GetInstance();
 
   // It should be called on the UI thread.
   void Init();
 
-  // TODO(ibraaaa): DELETE. http://crbug.com/124396
-  static void Get(const base::Callback<void(PluginFinder*)>& cb);
-
 #if defined(ENABLE_PLUGIN_INSTALLATION)
   // Finds a plug-in for the given MIME type and language (specified as an IETF
   // language tag, i.e. en-US) and returns the PluginInstaller for the plug-in,
   // or NULL if no plug-in is found.
   PluginInstaller* FindPlugin(const std::string& mime_type,
                               const std::string& language);
 
   // Returns the plug-in with the given identifier.
   PluginInstaller* FindPluginWithIdentifier(const std::string& identifier);
 #endif
@@ skipping 38 matching lines @@
 
   // Synchronization for |installers_|, |identifier_plugin_| and
   // |name_plugin_| are required since multiple threads
   // can be accessing them concurrently.
   base::Lock mutex_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginFinder);
 };
 
 #endif  // CHROME_BROWSER_PLUGINS_PLUGIN_FINDER_H_