ResourceFetcher: Add POST support and the ability to set headers

chrome/renderer/net/net_error_helper.cc

 // Copyright (c) 2013 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 "chrome/renderer/net/net_error_helper.h"
 
 #include <string>
 
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
@@ skipping 155 matching lines @@
 }
 
 void NetErrorHelper::FetchErrorPage(const GURL& url) {
   DCHECK(!alt_error_page_fetcher_.get());
 
   blink::WebView* web_view = render_view()->GetWebView();
   if (!web_view)
     return;
   blink::WebFrame* frame = web_view->mainFrame();
 
-  alt_error_page_fetcher_.reset(
-      content::ResourceFetcher::Create(
-          url, frame, blink::WebURLRequest::TargetIsMainFrame,
-          base::Bind(&NetErrorHelper::OnAlternateErrorPageRetrieved,
-                     base::Unretained(this))));
+  alt_error_page_fetcher_.reset(content::ResourceFetcher::Create(url));
+
+  alt_error_page_fetcher_->Start(
+      frame, blink::WebURLRequest::TargetIsMainFrame,
+      base::Bind(&NetErrorHelper::OnAlternateErrorPageRetrieved,
+                     base::Unretained(this)));
 
   alt_error_page_fetcher_->SetTimeout(
       base::TimeDelta::FromSeconds(kAlterErrorPageFetchTimeoutSec));
 }
 
 void NetErrorHelper::CancelFetchErrorPage() {
   alt_error_page_fetcher_.reset();
 }
 
 void NetErrorHelper::OnNetErrorInfo(int status_num) {
@@ skipping 14 matching lines @@
   // The fetcher may only be deleted after |data| is passed to |core_|.  Move
   // it to a temporary to prevent any potential re-entrancy issues.
   scoped_ptr<content::ResourceFetcher> fetcher(
       alt_error_page_fetcher_.release());
   if (!response.isNull() && response.httpStatusCode() == 200) {
     core_.OnAlternateErrorPageFetched(data);
   } else {
     core_.OnAlternateErrorPageFetched("");
   }
 }