Move proxy handling into network details.

chrome/browser/resources/options2/chromeos/internet_detail.css

 /* 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. */
 
 /* Force tab strip to extend to the left and right edges of the window. */
 #internet-details-content-area {
   margin: 0 !important;
   padding: 0 !important;
 }
 
@@ skipping 31 matching lines @@
   border-left: 1px solid #ddd;
   border-right: 1px solid #ddd;
   border-top: 1px solid #ddd;
 }
 
 /* Fix the height of the subpages so that the dialog does not resize when the
    user switches tabs. */
 #internet-details-content-area > .subpages-tab-contents {
   -webkit-padding-end: 10px;
   height: 350px;
+  min-width: 480px;
   overflow-y: auto;
 }
 
 #ipConfigList {
   min-height: 96px !important;
 }
 
+/* Minimum and maximum height are integer multiples of the height of a list
+   entry. */
+#ignoredHostList {
+  -webkit-margin-start: 0;
+  border: solid 1px #999;
+  max-height: 128px;
+  min-height: 64px;
+  width: 400px;
+}
+
+#newHost {
+  -webkit-margin-start: 0;
+  margin-top: 8px;
+}
+