GData save package support with MHTML.

chrome/browser/download/download_file_picker_chromeos.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 "chrome/browser/download/download_file_picker_chromeos.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/sequenced_worker_pool.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/download_item.h"
-#include "content/public/browser/download_manager.h"
 #include "chrome/browser/chromeos/gdata/gdata_download_observer.h"
 #include "chrome/browser/chromeos/gdata/gdata_file_system.h"
 #include "chrome/browser/chromeos/gdata/gdata_system_service.h"
 #include "chrome/browser/chromeos/gdata/gdata_util.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/download_item.h"
+#include "content/public/browser/download_manager.h"
 
 using content::BrowserThread;
 using content::DownloadManager;
 
 namespace {
 
-// Callbacks for PostTaskAndReply.
-
-// |temp_path| is set to a temporary local download path in
-// ~/GCache/v1/tmp/downloads/
-// Must be called on the FILE thread.
-void GetGDataTempDownloadPath(const FilePath& download_cache_path,
-                              FilePath* temp_path) {
-  if (!file_util::CreateDirectory(download_cache_path)) {
-    NOTREACHED();
-    LOG(ERROR) << "Can not create temp download directory at "
-               << download_cache_path.value();
-  }
-  bool created = file_util::CreateTemporaryFileInDir(download_cache_path,
-                                                     temp_path);
-  // TODO(achuith): Handle failure in CreateTemporaryFileInDir.
-  DCHECK(created);
-}
-
 // Call FileSelected on |download_manager|.
 void GDataTempFileSelected(DownloadManager* download_manager,
                            FilePath* file_path,
                            int32 download_id) {
   download_manager->FileSelected(*file_path, download_id);
 }
 
 }  // namespace
 
 DownloadFilePickerChromeOS::DownloadFilePickerChromeOS(
@@ skipping 22 matching lines @@
     if (system_service && gdata::util::IsUnderGDataMountPoint(path)) {
       // If we're trying to download a file into gdata, save path in external
       // data.
       content::DownloadItem* download =
           download_manager_->GetActiveDownloadItem(download_id_);
       if (download) {
         gdata::GDataDownloadObserver::SetGDataPath(download, path);
         download->SetDisplayName(path.BaseName());
         download->SetIsTemporary(true);
 
-        const FilePath download_cache_path =
+        const FilePath gdata_tmp_download_dir =
             system_service->file_system()->GetGDataTempDownloadFolderPath();
 
         // Swap the gdata path with a local path. Local path must be created
         // on the IO thread pool.
-        FilePath* download_path(new FilePath());
+        FilePath* gdata_tmp_download_path(new FilePath());
         BrowserThread::GetBlockingPool()->PostTaskAndReply(FROM_HERE,
-            base::Bind(&GetGDataTempDownloadPath,
-                       download_cache_path,
-                       download_path),
+            base::Bind(&gdata::GDataDownloadObserver::GetGDataTempDownloadPath,
+                       gdata_tmp_download_dir,
+                       gdata_tmp_download_path),
             base::Bind(&GDataTempFileSelected,
                        download_manager_,
-                       base::Owned(download_path),
+                       base::Owned(gdata_tmp_download_path),
                        download_id_));
       }
     } else {
       download_manager_->FileSelected(path, download_id_);
     }
   }
   delete this;
 }