Fixed issue with pods flying when changing profiles.

ui/login/account_picker/user_pod_row.css

 /* Copyright 2014 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.
  *
  * This is the stylesheet used by user pods row of account picker UI.
  */
 
 podrow {
   /* Temporarily disabled because animation interferes with updating screen's
    size. */
@@ skipping 18 matching lines @@
   border-radius: 2px;
   box-shadow: 0 4px 23px 5px rgba(0, 0, 0, 0.2),
               0 2px 6px rgba(0, 0, 0, 0.15),
               0 3px 0 rgba(0, 0, 0, 0.08);
   cursor: pointer;
   height: 213px;
   outline: none;
   position: absolute;
   top: 0;
   transform: scale3d(0.9, 0.9, 0.9);
+  width: 180px;
+  z-index: 0;
+}
+
+#account_picker.flying-pods .pod {
+  transition: all 180ms;
+}
+
+.pod.flying-pin-pod {
   transition: height 180ms ease-in-out,
               padding 180ms ease-in-out,
               top 180ms ease-in-out,
               width 180ms ease-in-out;
-  width: 180px;
-  z-index: 0;
 }
 
 .pod.pin-enabled {
   height: 600px;
   padding: 10px;
   top: -200px !important;
   width: 256px;
 }
 
 .pod .pin-container {
@@ skipping 822 matching lines @@
   -webkit-animation: ellipsis-component2 1.5s infinite;
 }
 
 @-webkit-keyframes ellipsis-component2 {
   0% { opacity: 0; }
   25% { opacity: 0; }
   50% { opacity: 0; }
   75% { opacity: 1; }
   100% { opacity: 0; }
 }