Revert 227318 "Clean up ResourceHandler API."

content/browser/loader/stream_resource_handler.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 "content/browser/loader/stream_resource_handler.h"
 
 #include "base/guid.h"
 #include "base/logging.h"
 #include "content/browser/streams/stream.h"
 #include "content/browser/streams/stream_registry.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/common/url_constants.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/url_request_status.h"
 
 namespace content {
 
 StreamResourceHandler::StreamResourceHandler(
     net::URLRequest* request,
     StreamRegistry* registry,
     const GURL& origin)
-    : ResourceHandler(request),
+    : request_(request),
       read_buffer_(NULL) {
   // TODO(tyoshino): Find a way to share this with the blob URL creation in
   // WebKit.
   GURL url(std::string(chrome::kBlobScheme) + ":" +
            origin.spec() + base::GenerateGUID());
   stream_ = new Stream(registry, this, url);
 }
 
 StreamResourceHandler::~StreamResourceHandler() {
   stream_->RemoveWriteObserver(this);
@@ skipping 18 matching lines @@
   return true;
 }
 
 bool StreamResourceHandler::OnWillStart(int request_id,
                                         const GURL& url,
                                         bool* defer) {
   return true;
 }
 
 bool StreamResourceHandler::OnWillRead(int request_id,
-                                       scoped_refptr<net::IOBuffer>* buf,
+                                       net::IOBuffer** buf,
                                        int* buf_size,
                                        int min_size) {
   static const int kReadBufSize = 32768;
 
   DCHECK(buf && buf_size);
   if (!read_buffer_.get())
     read_buffer_ = new net::IOBuffer(kReadBufSize);
   *buf = read_buffer_.get();
   *buf_size = kReadBufSize;
 
@@ skipping 37 matching lines @@
 
 void StreamResourceHandler::OnSpaceAvailable(Stream* stream) {
   controller()->Resume();
 }
 
 void StreamResourceHandler::OnClose(Stream* stream) {
   controller()->Cancel();
 }
 
 }  // namespace content