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

chrome/browser/google/chrome_google_url_tracker_client.cc

Index: chrome/browser/google/chrome_google_url_tracker_client.cc
diff --git a/chrome/browser/google/chrome_google_url_tracker_client.cc b/chrome/browser/google/chrome_google_url_tracker_client.cc
index 2d8a1e50196c30120182212624ac987866b180d1..541666920ba805f1f0986612ddf63940895ad9d2 100644
--- a/chrome/browser/google/chrome_google_url_tracker_client.cc
+++ b/chrome/browser/google/chrome_google_url_tracker_client.cc
@@ -6,6 +6,7 @@
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/google/google_url_tracker.h"
+#include "chrome/browser/google/google_url_tracker_navigation_helper_impl.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
@@ -48,12 +49,13 @@ void ChromeGoogleURLTrackerClient::Observe(
       content::Source<content::NavigationController>(source).ptr();
   InfoBarService* infobar_service =
       InfoBarService::FromWebContents(controller->GetWebContents());
-  // Because we're listening to all sources, there may be no
-  // InfoBarService for some notifications, e.g. navigations in
-  // bubbles/balloons etc.
+  // Because we're listening to all sources, there may be no InfoBarService for
+  // some notifications, e.g. navigations in bubbles/balloons etc.
   if (infobar_service) {
     google_url_tracker()->OnNavigationPending(
-        controller,
+        scoped_ptr<GoogleURLTrackerNavigationHelper>(
+            new GoogleURLTrackerNavigationHelperImpl(
+                controller->GetWebContents(), google_url_tracker())),
         infobar_service,
         controller->GetPendingEntry()->GetUniqueID());
   }