Remove thread restriction of fileapi::FileSystemContext::ResolveURL.

chrome/browser/chromeos/extensions/file_manager/file_browser_handler_api.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.
 
 // The file contains the implementation of
 // fileBrowserHandlerInternal.selectFile extension function.
 // When invoked, the function does the following:
 //  - Verifies that the extension function was invoked as a result of user
 //    gesture.
 //  - Display 'save as' dialog using FileSelectorImpl which waits for the user
@@ skipping 308 matching lines @@
       file_manager::util::GetFileSystemContextForRenderViewHost(
           GetProfile(), render_view_host())->external_backend();
   DCHECK(external_backend);
 
   FileDefinition file_definition;
   file_definition.is_directory = false;
 
   external_backend->GetVirtualPath(full_path, &file_definition.virtual_path);
   DCHECK(!file_definition.virtual_path.empty());
 
-  file_manager::util::ConvertFileDefinitionToEntryDefinition(
-      GetProfile(),
-      extension_id(),
-      file_definition,
-      base::Bind(
-          &FileBrowserHandlerInternalSelectFileFunction::GrantPermissions,
-          this,
-          full_path,
-          file_definition));
-}
-
-void FileBrowserHandlerInternalSelectFileFunction::GrantPermissions(
-    const base::FilePath& full_path,
-    const FileDefinition& file_definition,
-    const EntryDefinition& entry_definition) {
-  fileapi::ExternalFileSystemBackend* external_backend =
-      file_manager::util::GetFileSystemContextForRenderViewHost(
-          GetProfile(), render_view_host())->external_backend();
-  DCHECK(external_backend);
-
   // Grant access to this particular file to target extension. This will
   // ensure that the target extension can access only this FS entry and
   // prevent from traversing FS hierarchy upward.
   external_backend->GrantFileAccessToExtension(extension_id(),
                                                file_definition.virtual_path);
 
   // Grant access to the selected file to target extensions render view process.
   content::ChildProcessSecurityPolicy::GetInstance()->GrantCreateReadWriteFile(
       render_view_host()->GetProcess()->GetID(), full_path);
 
+  file_manager::util::ConvertFileDefinitionToEntryDefinition(
+      GetProfile(),
+      extension_id(),
+      file_definition,
+      base::Bind(
+          &FileBrowserHandlerInternalSelectFileFunction::RespondEntryDefinition,
+          this));
+}
+
+void FileBrowserHandlerInternalSelectFileFunction::RespondEntryDefinition(
+    const EntryDefinition& entry_definition) {
   Respond(entry_definition, true);
 }
 
 void FileBrowserHandlerInternalSelectFileFunction::Respond(
     const EntryDefinition& entry_definition,
     bool success) {
   scoped_ptr<SelectFile::Results::Result> result(
       new SelectFile::Results::Result());
   result->success = success;
 
   // If the file was selected, add 'entry' object which will be later used to
   // create a FileEntry instance for the selected file.
   if (success && entry_definition.error == base::File::FILE_OK) {
     result->entry.reset(new FileEntryInfo());
     // TODO(mtomasz): Make the response fields consistent with other files.
     result->entry->file_system_name = entry_definition.file_system_name;
     result->entry->file_system_root = entry_definition.file_system_root_url;
     result->entry->file_full_path =
         "/" + entry_definition.full_path.AsUTF8Unsafe();
     result->entry->file_is_directory = entry_definition.is_directory;
   }
 
   results_ = SelectFile::Results::Create(*result);
   SendResponse(true);
 }