Add support to sha256 hash the downloaded file....

chrome/browser/download/download_file_manager.cc

 // Copyright (c) 2010 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/browser/download/download_file_manager.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
 #include "base/task.h"
 #include "base/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/download/download_util.h"
 #include "chrome/browser/history/download_create_info.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
+#include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/io_buffer.h"
 
 #if defined(OS_WIN)
 #include "chrome/common/win_safe_util.h"
 #elif defined(OS_MACOSX)
 #include "chrome/browser/ui/cocoa/file_metadata.h"
 #endif
@@ skipping 36 matching lines @@
       BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(this, &DownloadFileManager::OnShutdown));
 }
 
 void DownloadFileManager::OnShutdown() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   StopUpdateTimer();
   STLDeleteValues(&downloads_);
 }
 
-void DownloadFileManager::CreateDownloadFile(
-    DownloadCreateInfo* info, DownloadManager* download_manager) {
+void DownloadFileManager::CreateDownloadFile(DownloadCreateInfo* info,
+                                             DownloadManager* download_manager,
+                                             bool get_hash) {
   VLOG(20) << __FUNCTION__ << "()" << " info = " << info->DebugString();
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
-  scoped_ptr<DownloadFile> download_file(
-      new DownloadFile(info, download_manager));
-  if (!download_file->Initialize()) {
+  scoped_ptr<DownloadFile>
+      download_file(new DownloadFile(info, download_manager));
+  if (!download_file->Initialize(get_hash)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         NewRunnableFunction(&download_util::CancelDownloadRequest,
                             resource_dispatcher_host_,
                             info->child_id,
                             info->request_id));
     delete info;
     return;
   }
 
@@ skipping 75 matching lines @@
         NewRunnableFunction(&download_util::CancelDownloadRequest,
                             resource_dispatcher_host_,
                             info->child_id,
                             info->request_id));
     delete info;
     return;
   }
 
   manager->CreateDownloadItem(info);
 
+  bool hash_needed = resource_dispatcher_host_->safe_browsing_service()->
+      DownloadBinHashNeeded();
+
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(this, &DownloadFileManager::CreateDownloadFile,
-                        info, make_scoped_refptr(manager)));
+                        info, make_scoped_refptr(manager), hash_needed));
 }
 
 // We don't forward an update to the UI thread here, since we want to throttle
 // the UI update rate via a periodic timer. If the user has cancelled the
 // download (in the UI thread), we may receive a few more updates before the IO
 // thread gets the cancel message: we just delete the data since the
 // DownloadFile has been deleted.
 void DownloadFileManager::UpdateDownload(int id, DownloadBuffer* buffer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   std::vector<DownloadBuffer::Contents> contents;
@@ skipping 176 matching lines @@
   if (!download_manager) {
     download->CancelDownloadRequest(resource_dispatcher_host_);
     return;
   }
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(download_manager,
                         &DownloadManager::DownloadCancelled, id));
 }