Make all quota-exceeding messages in the storage API explain what the failure

chrome/common/extensions/docs/css/ApiRefStyles.css

Index: chrome/common/extensions/docs/css/ApiRefStyles.css
diff --git a/chrome/common/extensions/docs/css/ApiRefStyles.css b/chrome/common/extensions/docs/css/ApiRefStyles.css
index 4f5f4ef2da6083bd6abe2593b72f5cddfb5334d6..fc7948f0ad8fd84a3904da1d26a52a1d8e9019b6 100644
--- a/chrome/common/extensions/docs/css/ApiRefStyles.css
+++ b/chrome/common/extensions/docs/css/ApiRefStyles.css
@@ -1,3 +1,8 @@
+/* Copyright (c) 2012 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.
+ */
+
 .todo, .comment { /* while we're working on doc, comment out display */
   color: rgb(255, 0, 0);
   display: none;
@@ -332,6 +337,7 @@ div#toc {
   margin: 5px 0px 5px 20px;
   padding: 5px;
   width: 250px;
+  word-break: break-all;
 }
 
 #toc p {