Rename GDataFileSystem* to DriveFileSystem*

chrome/browser/resources/file_manager/js/file_copy_manager.js

 // 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.
 
 /**
  * @constructor
  * @param {DirectoryEntry} root Root directory entry.
  */
 function FileCopyManager(root) {
   this.copyTasks_ = [];
@@ skipping 762 matching lines @@
           function(dirEntry, fileName) {
             sourceEntry.moveTo(dirEntry, fileName,
                                onFilesystemMoveComplete.bind(self, sourceEntry),
                                onFilesystemError);
           },
           onFilesystemError);
       return;
     }
 
     if (task.sourceOnGData && task.targetOnGData) {
-      // TODO(benchan): GDataFileSystem has not implemented directory copy,
+      // TODO(benchan): DriveFileSystem has not implemented directory copy,
       // and thus we only call FileEntry.copyTo() for files. Revisit this
-      // code when GDataFileSystem supports directory copy.
+      // code when DriveFileSystem supports directory copy.
       if (!sourceEntry.isDirectory) {
         resolveDirAndBaseName(
             targetDirEntry, targetRelativePath,
             function(dirEntry, fileName) {
               sourceEntry.copyTo(dirEntry, fileName,
                   onFilesystemCopyComplete.bind(self, sourceEntry),
                   onFilesystemError);
             },
             onFilesystemError);
         return;
       }
     }
 
-    // TODO(benchan): Until GDataFileSystem supports FileWriter, we use the
+    // TODO(benchan): Until DriveFileSystem supports FileWriter, we use the
     // transferFile API to copy files into or out from a gdata file system.
     if (sourceEntry.isFile && (task.sourceOnGData || task.targetOnGData)) {
       var sourceFileUrl = sourceEntry.toURL();
       var targetFileUrl = targetDirEntry.toURL() + '/' +
                           encodeURIComponent(targetRelativePath);
       var transferedBytes = 0;
       function onFileTransfersUpdated(statusList) {
         for (var i = 0; i < statusList.length; i++) {
           var s = statusList[i];
           if ((s.fileUrl == sourceFileUrl || s.fileUrl == targetFileUrl) &&
@@ skipping 125 matching lines @@
       };
 
       writer.write(file);
     }
 
     targetEntry.createWriter(onWriterCreated, errorCallback);
   }
 
   sourceEntry.file(onSourceFileFound, errorCallback);
 };
-