Fix a couple of typos.

chrome/browser/chromeos/drive/drive_file_system.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_DRIVE_DRIVE_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_FILE_SYSTEM_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 225 matching lines @@
   // Defines set of parameters passed to intermediate callbacks during
   // execution of GetFileByPath() method.
   struct GetFileFromCacheParams;
 
   // Struct used for AddUploadedFile.
   struct AddUploadedFileParams;
 
   // Struct used by UpdateEntryData.
   struct UpdateEntryParams;
 
-  // Initializes DriveResourceMetadta and DriveFeedLoader instances. This is a
+  // Initializes DriveResourceMetadata and DriveFeedLoader instances. This is a
   // part of the initialization.
-  void InitializeResourceMetadtaAndFeedLoader();
+  void InitializeResourceMetadataAndFeedLoader();
 
   // Callback passed to |LoadFeedFromServer| from |Search| method.
   // |callback| is that should be run with data received from
   // |LoadFeedFromServer|. |callback| must not be null.
   // |params| params used for getting document feed for content search.
   // |error| error code returned by |LoadFeedFromServer|.
   void OnSearch(const SearchCallback& callback,
                 scoped_ptr<LoadFeedParams> params,
                 DriveFileError error);
 
@@ skipping 489 matching lines @@
   // from IO thread to UI thread.
   base::WeakPtr<DriveFileSystem> ui_weak_ptr_;
 
   // Polling interval for checking updates in seconds.
   int polling_interval_sec_;
 };
 
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_DRIVE_FILE_SYSTEM_H_