Make image_decoder a Leaky LazyInstance

chrome/utility/extensions/extensions_handler.h

 // Copyright 2014 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_UTILITY_EXTENSIONS_EXTENSIONS_HANDLER_H_
 #define CHROME_UTILITY_EXTENSIONS_EXTENSIONS_HANDLER_H_
 
 #include "base/base64.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
@@ skipping 18 matching lines @@
   ~ExtensionsHandler() override;
 
   static void PreSandboxStartup();
 
   // UtilityMessageHandler:
   bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   // IPC message handlers.
   void OnUnzipToDir(const base::FilePath& zip_path, const base::FilePath& dir);
-  void OnDecodeImageBase64(const std::string& encoded_data);
   void OnCheckMediaFile(int64 milliseconds_of_decoding,
                         const IPC::PlatformFileForTransit& media_file);
 
 #if defined(OS_WIN)
   void OnParseITunesPrefXml(const std::string& itunes_xml_data);
 #endif  // defined(OS_WIN)
 
 #if defined(OS_MACOSX)
   void OnParseIPhotoLibraryXmlFile(
       const IPC::PlatformFileForTransit& iphoto_library_file);
@@ skipping 16 matching lines @@
 #endif  // defined(OS_WIN)
 
   UtilityHandler utility_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionsHandler);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_UTILITY_EXTENSIONS_EXTENSIONS_HANDLER_H_