Keep CrOS OOBE user image grid from stealing focus from the OK button

BUG=140108
TBR=nkostylev

Review URL: https://chromiumcodereview.appspot.com/10825141

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149652 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/chromeos/user_images_grid.js

@@ -329,7 +329,10 @@ cr.define('options', function() {
         this.removeItem(this.cameraImage_);
         this.cameraImage_ = null;
       }
-      this.focus();
+
+      // Set focus to the grid, unless focus is on the OK button.
+      if (!document.activeElement || document.activeElement.tagName != 'BUTTON')
+        this.focus();
     },
 
     /**