ResourceFetcher: Add POST support and the ability to set headers

content/renderer/fetchers/multi_resolution_image_resource_fetcher.cc

 // 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.
 
 #include "content/renderer/fetchers/multi_resolution_image_resource_fetcher.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "content/child/image_decoder.h"
 #include "content/public/renderer/resource_fetcher.h"
@@ skipping 11 matching lines @@
 MultiResolutionImageResourceFetcher::MultiResolutionImageResourceFetcher(
     const GURL& image_url,
     WebFrame* frame,
     int id,
     WebURLRequest::TargetType target_type,
     const Callback& callback)
     : callback_(callback),
       id_(id),
       http_status_code_(0),
       image_url_(image_url) {
-  fetcher_.reset(ResourceFetcher::Create(
-      image_url, frame, target_type,
+  fetcher_.reset(ResourceFetcher::Create(image_url));
+  fetcher_->Start(
+      frame, target_type,
       base::Bind(&MultiResolutionImageResourceFetcher::OnURLFetchComplete,
-                 base::Unretained(this))));
+                 base::Unretained(this)));
 }
 
 MultiResolutionImageResourceFetcher::~MultiResolutionImageResourceFetcher() {
 }
 
 void MultiResolutionImageResourceFetcher::OnURLFetchComplete(
     const WebURLResponse& response,
     const std::string& data) {
   std::vector<SkBitmap> bitmaps;
   if (!response.isNull()) {
     http_status_code_ = response.httpStatusCode();
     GURL url(response.url());
     if (http_status_code_ == 200 || url.SchemeIsFile()) {
       // Request succeeded, try to convert it to an image.
       bitmaps = ImageDecoder::DecodeAll(
           reinterpret_cast<const unsigned char*>(data.data()), data.size());
     }
   } // else case:
     // If we get here, it means no image from server or couldn't decode the
     // response as an image. The delegate will see an empty vector.
 
   // Take a reference to the callback as running the callback may lead to our
   // destruction.
   Callback callback = callback_;
   callback.Run(this, bitmaps);
 }
 
 }  // namespace content