Added member data to classes to support download resumption.

content/browser/download/download_file_impl.cc

 // Copyright (c) 2011 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/download_file_impl.h"
 
 #include <string>
 
 #include "base/stringprintf.h"
 #include "content/browser/download/download_create_info.h"
 #include "content/browser/download/download_manager.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 DownloadFileImpl::DownloadFileImpl(
     const DownloadCreateInfo* info,
     DownloadRequestHandleInterface* request_handle,
     DownloadManager* download_manager)
     : file_(info->save_info.file_path,
             info->url(),
             info->referrer_url,
             info->received_bytes,
+            info->save_info.hash_state,
             info->save_info.file_stream),
       id_(info->download_id),
       request_handle_(request_handle),
       download_manager_(download_manager) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 }
 
 DownloadFileImpl::~DownloadFileImpl() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 }
@@ skipping 37 matching lines @@
 }
 
 int64 DownloadFileImpl::BytesSoFar() const {
   return file_.bytes_so_far();
 }
 
 bool DownloadFileImpl::GetSha256Hash(std::string* hash) {
   return file_.GetSha256Hash(hash);
 }
 
+std::string DownloadFileImpl::GetSha256HashState() {
+  return file_.GetSha256HashState();
+}
+
+bool DownloadFileImpl::SetSha256HashState(const std::string& hash_state) {
+  return file_.SetSha256HashState(hash_state);
+}
+
 // DownloadFileInterface implementation.
 void DownloadFileImpl::CancelDownloadRequest() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   request_handle_->CancelRequest();
 }
 
 int DownloadFileImpl::Id() const {
   return id_.local();
 }
 
 DownloadManager* DownloadFileImpl::GetDownloadManager() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   return download_manager_.get();
 }
 
 const DownloadId& DownloadFileImpl::GlobalId() const {
   return id_;
 }
 
 std::string DownloadFileImpl::DebugString() const {
   return base::StringPrintf("{"
                             " id_ = " "%d"
                             " request_handle = %s"
                             " Base File = %s"
                             " }",
                             id_.local(),
                             request_handle_->DebugString().c_str(),
                             file_.DebugString().c_str());
 }