Photo Editor async processing fix

BUG=chromium-os:23613
TEST=

Review URL: http://codereview.chromium.org/8769036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112694 0039d316-1c4b-4281-b951-d872f2087c98

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

@@ -332,7 +332,14 @@ ImageEditor.prototype.enterMode = function(mode, event) {
   }
 
   this.leaveModeGently();
+  // The above call could have caused a commit which might have initiated
+  // an asynchronous command execution. Wait for it to complete, then proceed
+  // with the mode set up.
+  this.commandQueue_.requestCurrentImage(
+      this.setUpMode_.bind(this, mode, event));
+};
 
+ImageEditor.prototype.setUpMode_ = function(mode, event) {
   this.currentTool_ = event.target;
 
   ImageUtil.setAttribute(this.currentTool_, 'pressed', true);