Add the proxy information to the new net internals page.

chrome/browser/resources/net_internals/main.css

Index: chrome/browser/resources/net_internals/main.css
===================================================================
--- chrome/browser/resources/net_internals/main.css	(revision 43515)
+++ chrome/browser/resources/net_internals/main.css	(working copy)
@@ -180,6 +180,16 @@
 }
 
 #detailsLogBox,
-#detailsTimelineBox {
+#detailsTimelineBox,
+#proxyTabContent {
   overflow: auto;
 }
+
+#proxyTabContent {
+  padding-left: 20px;
+}
+
+#proxyTabContent td,
+#proxyTabContent th {
+  font-size: 12px;
+}