[cros] Initial WebRTC-enabled implementation of user image picker on OOBE.

chrome/browser/image_decoder.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_IMAGE_DECODER_H_
 #define CHROME_BROWSER_IMAGE_DECODER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 26 matching lines @@
   ImageDecoder(Delegate* delegate,
                const std::string& image_data);
 
   // Starts image decoding.
   void Start();
 
   const std::vector<unsigned char>& get_image_data() const {
     return image_data_;
   }
 
+  void set_delegate(Delegate* delegate) { delegate_ = delegate; }
+
  private:
   // It's a reference counted object, so destructor is private.
   virtual ~ImageDecoder();
 
   // Overidden from UtilityProcessHostClient:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // IPC message handlers.
   void OnDecodeImageSucceeded(const SkBitmap& decoded_image);
   void OnDecodeImageFailed();
 
   // Launches sandboxed process that will decode the image.
   void DecodeImageInSandbox(const std::vector<unsigned char>& image_data);
 
   Delegate* delegate_;
   std::vector<unsigned char> image_data_;
   content::BrowserThread::ID target_thread_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageDecoder);
 };
 
 #endif  // CHROME_BROWSER_IMAGE_DECODER_H_