Adds DNS prefetch support to Chromecast.

chrome/renderer/net/prescient_networking_dispatcher.cc

Index: chrome/renderer/net/prescient_networking_dispatcher.cc
diff --git a/chrome/renderer/net/prescient_networking_dispatcher.cc b/chrome/renderer/net/prescient_networking_dispatcher.cc
deleted file mode 100644
index be42b3ec0ee3c8d5e6d693abf096aa9689f0a0ae..0000000000000000000000000000000000000000
--- a/chrome/renderer/net/prescient_networking_dispatcher.cc
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2013 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 "chrome/renderer/net/prescient_networking_dispatcher.h"
-
-#include "base/strings/utf_string_conversions.h"
-
-using blink::WebPrescientNetworking;
-
-PrescientNetworkingDispatcher::PrescientNetworkingDispatcher() {
-}
-
-PrescientNetworkingDispatcher::~PrescientNetworkingDispatcher() {
-}
-
-void PrescientNetworkingDispatcher::prefetchDNS(
-    const blink::WebString& hostname) {
-  if (hostname.isEmpty())
-    return;
-
-  std::string hostname_utf8 = base::UTF16ToUTF8(hostname);
-  net_predictor_.Resolve(hostname_utf8.data(), hostname_utf8.length());
-}