Change the meaning of SelectFileDialog.support_drive: it means Drive-aware callers.

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

Index: chrome/browser/resources/file_manager/js/file_manager.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager.js b/chrome/browser/resources/file_manager/js/file_manager.js
index f9280a94beaf4e2d58ce773bea86b045cead4c35..a3144a9779f62ce2649a44fc8f52f0e6a253d13d 100644
--- a/chrome/browser/resources/file_manager/js/file_manager.js
+++ b/chrome/browser/resources/file_manager/js/file_manager.js
@@ -2018,9 +2018,17 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
   };
 
   FileManager.prototype.isDriveEnabled = function() {
-    // TODO(kinaba): Remove the "!shouldReturnLocalPath &&" condition once
-    // crbug.com/140425 is done.
-    return !this.params_.shouldReturnLocalPath &&
+    // Auto resolving to local path does not work for folders (e.g., dialog for
+    // loading unpacked extensions) and saving.
+    // TODO(kinaba): remove it from the save dialog http://crbug.com/140425
+    var noLocalPathResolution =
+      this.params_.type == DialogType.SELECT_SAVEAS_FILE ||
+      this.params_.type == DialogType.SELECT_FOLDER ||
+      this.params_.type == DialogType.SELECT_UPLOAD_FOLDER;
+    var clientCanHandleDrive =

[satorux1, 2013/08/06 02:07:17]

Maybe return here?

if (noLocalPathResolution && this.params_.shouldReturnLocalPath)
  return false;

[kinaba, 2013/08/06 06:20:56]

Done.

+      !(noLocalPathResolution && this.params_.shouldReturnLocalPath);
+
+    return clientCanHandleDrive &&
         (!('driveEnabled' in this.preferences_) ||

[satorux1, 2013/08/06 02:07:17]

Should we check this ('driveEnabled' not in this.preferences_)? If so, it'd be
nice to add some comment. Otherwise, can remove this.

Alternatively: this.preferences_.driveEnabled != false;

[kinaba, 2013/08/06 06:20:56]

Done.

          this.preferences_.driveEnabled);
   };