Files.app: Use quotaBytesUsedAggregate to know the actual available space.

chrome/browser/drive/drive_api_service.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/drive/drive_api_service.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 73 matching lines @@
 // - The running time for a single request tends to become longer.
 // Since the file list fetching is a completely background task, for our side,
 // only the total time matters. However, the server seems to have a time limit
 // per single request, which disables us to set the largest value (1000).
 // TODO(kinaba): make it larger when the server gets faster.
 const int kMaxNumFilesResourcePerRequest = 300;
 const int kMaxNumFilesResourcePerRequestForSearch = 100;
 
 // For performance, we declare all fields we use.
 const char kAboutResourceFields[] =
-    "kind,quotaBytesTotal,quotaBytesUsed,largestChangeId,rootFolderId";
+    "kind,quotaBytesTotal,quotaBytesUsedAggregate,largestChangeId,rootFolderId";
 const char kFileResourceFields[] =
     "kind,id,title,createdDate,sharedWithMeDate,mimeType,"
     "md5Checksum,fileSize,labels/trashed,imageMediaMetadata/width,"
     "imageMediaMetadata/height,imageMediaMetadata/rotation,etag,"
     "parents(id,parentLink),alternateLink,"
     "modifiedDate,lastViewedByMeDate,shared";
 const char kFileResourceOpenWithLinksFields[] =
     "kind,id,openWithLinks/*";
 const char kFileResourceShareLinkFields[] =
     "kind,id,shareLink";
@@ skipping 753 matching lines @@
   // RequestSender before the request is committed because the request has a
   // reference to RequestSender and we should ensure to delete the request when
   // the sender is deleted. Resolve the circulating dependency and fix it.
   const google_apis::CancelCallback callback =
       sender_->StartRequestWithRetry(request.release());
   return make_scoped_ptr<BatchRequestConfiguratorInterface>(
       new BatchRequestConfigurator(weak_ref, callback));
 }
 
 }  // namespace drive