Add mechanism to auto mount file systems in response to a URL request.

content/browser/storage_partition_impl_map.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 "content/browser/storage_partition_impl_map.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
@@ skipping 366 matching lines @@
       ChromeBlobStorageContext::GetFor(browser_context_);
   StreamContext* stream_context = StreamContext::GetFor(browser_context_);
   ProtocolHandlerMap protocol_handlers;
   protocol_handlers[kBlobScheme] =
       linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
           new BlobProtocolHandler(blob_storage_context,
                                   stream_context,
                                   partition->GetFileSystemContext()));
   protocol_handlers[kFileSystemScheme] =
       linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
-          CreateFileSystemProtocolHandler(partition->GetFileSystemContext()));
+          CreateFileSystemProtocolHandler(partition_domain,
+                                          partition->GetFileSystemContext()));
   protocol_handlers[kChromeUIScheme] =
       linked_ptr<net::URLRequestJobFactory::ProtocolHandler>(
           URLDataManagerBackend::CreateProtocolHandler(
               browser_context_->GetResourceContext(),
               browser_context_->IsOffTheRecord(),
               partition->GetAppCacheService(),
               blob_storage_context));
   std::vector<std::string> additional_webui_schemes;
   GetContentClient()->browser()->GetAdditionalWebUISchemes(
       &additional_webui_schemes);
@@ skipping 162 matching lines @@
 
     // We do not call InitializeURLRequestContext() for media contexts because,
     // other than the HTTP cache, the media contexts share the same backing
     // objects as their associated "normal" request context.  Thus, the previous
     // call serves to initialize the media request context for this storage
     // partition as well.
   }
 }
 
 }  // namespace content