Clean up ResourceHandler API.

content/browser/download/save_file_resource_handler.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/browser/download/save_file_resource_handler.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/download/save_file_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/url_request_status.h"
 
 namespace content {
 
 SaveFileResourceHandler::SaveFileResourceHandler(int render_process_host_id,
                                                  int render_view_id,
                                                  const GURL& url,
                                                  SaveFileManager* manager)
-    : save_id_(-1),
+    : ResourceHandler(NULL),
+      save_id_(-1),
       render_process_id_(render_process_host_id),
       render_view_id_(render_view_id),
       url_(url),
       content_length_(0),
       save_manager_(manager) {
 }
 
 SaveFileResourceHandler::~SaveFileResourceHandler() {
 }
 
@@ skipping 33 matching lines @@
       base::Bind(&SaveFileManager::StartSave, save_manager_, info));
   return true;
 }
 
 bool SaveFileResourceHandler::OnWillStart(int request_id,
                                           const GURL& url,
                                           bool* defer) {
   return true;
 }
 
-bool SaveFileResourceHandler::OnWillRead(int request_id, net::IOBuffer** buf,
-                                         int* buf_size, int min_size) {
+bool SaveFileResourceHandler::OnWillRead(int request_id,
+                                         scoped_refptr<net::IOBuffer>* buf,
+                                         int* buf_size,
+                                         int min_size) {
   DCHECK(buf && buf_size);
   if (!read_buffer_.get()) {
     *buf_size = min_size < 0 ? kReadBufSize : min_size;
     read_buffer_ = new net::IOBuffer(*buf_size);
   }
   *buf = read_buffer_.get();
   return true;
 }
 
 bool SaveFileResourceHandler::OnReadCompleted(int request_id, int bytes_read,
@@ skipping 26 matching lines @@
     int bytes_downloaded) {
   NOTREACHED();
 }
 
 void SaveFileResourceHandler::set_content_length(
     const std::string& content_length) {
   base::StringToInt64(content_length, &content_length_);
 }
 
 }  // namespace content