[BlobStorage] Implementing disk.

content/child/blob_storage/blob_transport_controller.cc

 // Copyright 2015 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/child/blob_storage/blob_transport_controller.h"
 
 #include <limits>
 #include <memory>
 #include <utility>
 #include <vector>
@@ skipping 122 matching lines @@
     if (!last_modified) {
       return base::nullopt;
     }
     last_modified_times[request.handle_index] = last_modified.value();
   }
   for (const auto& request : *requests) {
     responses.push_back(BlobItemBytesResponse(request.request_number));
     responses.back().time_file_modified =
         last_modified_times[request.handle_index];
   }
+  for (auto& file : files) {
+    file.Flush();
+  }
 
   return responses;
 }
 
 }  // namespace
 
 BlobTransportController* BlobTransportController::GetInstance() {
   return g_controller.Pointer();
 }
 
@@ skipping 248 matching lines @@
 
 void BlobTransportController::ReleaseBlobConsolidation(
     const std::string& uuid) {
   if (blob_storage_.erase(uuid)) {
     main_thread_runner_->PostTask(FROM_HERE,
                                   base::Bind(&DecChildProcessRefCount));
   }
 }
 
 }  // namespace content