Turn GoogleURLTrackerNavigationHelper(Impl) into a per-tab object.

chrome/browser/google/google_url_tracker_navigation_helper.cc

Index: chrome/browser/google/google_url_tracker_navigation_helper.cc
diff --git a/chrome/browser/google/google_url_tracker_navigation_helper.cc b/chrome/browser/google/google_url_tracker_navigation_helper.cc
new file mode 100644
index 0000000000000000000000000000000000000000..84a2651b54dd7234ff4e485035af674a4994ef77
--- /dev/null
+++ b/chrome/browser/google/google_url_tracker_navigation_helper.cc
@@ -0,0 +1,13 @@
+// Copyright 2014 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/browser/google/google_url_tracker_navigation_helper.h"
+
+GoogleURLTrackerNavigationHelper::GoogleURLTrackerNavigationHelper(
+    GoogleURLTracker* google_url_tracker)
+    : google_url_tracker_(google_url_tracker) {
+}
+
+GoogleURLTrackerNavigationHelper::~GoogleURLTrackerNavigationHelper() {
+}