Nitpicking fixes for Files.app code.

chrome/browser/chromeos/file_manager/volume_manager.h

Index: chrome/browser/chromeos/file_manager/volume_manager.h
diff --git a/chrome/browser/chromeos/file_manager/volume_manager.h b/chrome/browser/chromeos/file_manager/volume_manager.h
index 492d387da0726d0acbce839e0900ce85f5901450..99eb9681e8806ce526536e1918f913a302d62773 100644
--- a/chrome/browser/chromeos/file_manager/volume_manager.h
+++ b/chrome/browser/chromeos/file_manager/volume_manager.h
@@ -142,7 +142,7 @@ class VolumeManager : public KeyedService,
   bool FindVolumeInfoById(const std::string& volume_id,
                           VolumeInfo* result) const;
 
-  // For testing purpose, registers a native local file system poniting to
+  // For testing purpose, registers a native local file system pointing to
   // |path| with DOWNLOADS type, and adds its volume info.
   bool RegisterDownloadsDirectoryForTesting(const base::FilePath& path);