Add histograms for network activity, and total/cumulative

content/shell/shell_network_delegate.cc

 // 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.
 
 #include "content/shell/shell_network_delegate.h"
 
 #include "net/base/net_errors.h"
 
 namespace content {
 
@@ skipping 79 matching lines @@
     const net::URLRequest& request) const {
   return false;
 }
 
 int ShellNetworkDelegate::OnBeforeSocketStreamConnect(
     net::SocketStream* socket,
     const net::CompletionCallback& callback) {
   return net::OK;
 }
 
-void ShellNetworkDelegate::OnCacheWaitStateChange(
+void ShellNetworkDelegate::OnRequestWaitStateChange(
     const net::URLRequest& request,
-    CacheWaitState waiting) {
+    RequestWaitState waiting) {
 }
 
 }  // namespace content