Revert 138055 - gdata: Add requestDirectoryRefresh to file_browser_private.

chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc

Index: chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc
===================================================================
--- chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc	(revision 138055)
+++ chrome/browser/chromeos/gdata/gdata_file_system_unittest.cc	(working copy)
@@ -3663,17 +3663,4 @@
   EXPECT_EQ(1, num_callback_invocations_);
 }
 
-TEST_F(GDataFileSystemTest, RequestDirectoryRefresh) {
-  // We'll fetch documents in the root directory with its resource ID.
-  EXPECT_CALL(*mock_doc_service_,
-              GetDocuments(Eq(GURL()), _, _, kGDataRootDirectoryResourceId, _))
-      .Times(1);
-  // We'll notify the directory change to the observer.
-  EXPECT_CALL(*mock_directory_observer_,
-              OnDirectoryChanged(Eq(FilePath(kGDataRootDirectory)))).Times(1);
-
-  file_system_->RequestDirectoryRefresh(FilePath(kGDataRootDirectory));
-  message_loop_.RunAllPending();
-}
-
 }   // namespace gdata