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

chrome/browser/google/google_url_tracker_map_entry.cc

Index: chrome/browser/google/google_url_tracker_map_entry.cc
diff --git a/chrome/browser/google/google_url_tracker_map_entry.cc b/chrome/browser/google/google_url_tracker_map_entry.cc
index e0798fd144f58c9afe72064c15bf136aa99863b2..ee1ee0f2919d59f893c1813a7d2290844e86afce 100644
--- a/chrome/browser/google/google_url_tracker_map_entry.cc
+++ b/chrome/browser/google/google_url_tracker_map_entry.cc
@@ -15,11 +15,11 @@
 GoogleURLTrackerMapEntry::GoogleURLTrackerMapEntry(
     GoogleURLTracker* google_url_tracker,
     InfoBarService* infobar_service,
-    const content::NavigationController* navigation_controller)
+    scoped_ptr<GoogleURLTrackerNavigationHelper> navigation_helper)
     : google_url_tracker_(google_url_tracker),
       infobar_service_(infobar_service),
       infobar_delegate_(NULL),
-      navigation_controller_(navigation_controller) {
+      navigation_helper_(navigation_helper.Pass()) {
 }
 
 GoogleURLTrackerMapEntry::~GoogleURLTrackerMapEntry() {