gdata: Get rid of callback from GDataDirectoryService::FindEntryByPath()

chrome/browser/chromeos/gdata/gdata_files.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILES_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILES_H_
 
 #include <map>
 #include <string>
 
@@ skipping 340 matching lines @@
   // The root directory content origin.
   const ContentOrigin origin() const { return origin_; }
   void set_origin(ContentOrigin value) { origin_ = value; }
 
   // Adds the entry to resource map.
   void AddEntryToResourceMap(GDataEntry* entry);
 
   // Removes the entry from resource map.
   void RemoveEntryFromResourceMap(GDataEntry* entry);
 
-  // Searches for |file_path| triggering callback.
-  void FindEntryByPath(const FilePath& file_path,
-                       const FindEntryCallback& callback);
+  // Searches for |file_path| synchronously.
+  // TODO(satorux): Replace this with an async version crbug.com/137160
+  GDataEntry* FindEntryByPathSync(const FilePath& file_path);
 
   // Returns the GDataEntry* with the corresponding |resource_id|.
   // TODO(achuith): Get rid of this in favor of async version crbug.com/13957.
   GDataEntry* GetEntryByResourceId(const std::string& resource_id);
 
   // Returns the GDataEntry* in the callback with the corresponding
   // |resource_id|. TODO(achuith): Rename this to GetEntryByResourceId.
   void GetEntryByResourceIdAsync(const std::string& resource_id,
                                  const GetEntryByResourceIdCallback& callback);
 
@@ skipping 16 matching lines @@
   size_t serialized_size_;
   int largest_changestamp_;  // Stored in the serialized proto.
   ContentOrigin origin_;
 
   DISALLOW_COPY_AND_ASSIGN(GDataDirectoryService);
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILES_H_