ntp4: attribution tweak

chrome/browser/resources/ntp4/new_tab.css

 /* Copyright (c) 2011 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.
  */
 
 html {
   font-family: segoe ui, arial, helvetica, sans-serif;
   font-size: 14px;
   /* It's necessary to put this here instead of in body in order to get the
      background-size of 100% to work properly */
@@ skipping 90 matching lines @@
 }
 
 #page-list {
   /* fill the apps-frame */
   height: 100%;
   display: -webkit-box;
 }
 
 #attribution {
   bottom: 0;
+  left: auto;
+  margin-left: 8px;
+  /* Leave room for the scrollbar. */
+  margin-right: 13px;
   position: absolute;
-  /* Leave room for the scrollbar. */
-  right: 13px;
+  right: 0;
+  text-align: left;
   z-index: -5;
 }
 
+/* For themes that right-align their images, we flip the attribution to the
+ * left to avoid conflicts.  */
+html[themegravity='right'] #attribution,
+html[dir='rtl'] #attribution {
+  left: 0;
+  right: auto;
+  text-align: right;
+}
+
 #attribution > span {
   display: block;
   font-size: 84%;
-  /* Text should be left aligned regardless of diretionality. */
-  text-align: left;
 }
 
 #footer {
   background-image: -webkit-linear-gradient(
       rgba(242, 242, 242, 0.9), rgba(222, 222, 222, 0.9));
   bottom: 0;
   position: fixed;
   width: 100%;
   z-index: 5;
 }
@@ skipping 62 matching lines @@
   min-width: 90px;
   opacity: 0.3;
   top: 0;
   z-index: 5;
   -webkit-transition: width 150ms, right 150ms, background-color 150ms;
 }
 
 .page-switcher:hover {
   background-color: rgba(0, 0, 0, 0.2);
 }