Create GoogleURLTrackerClient interface and //chrome implementation

chrome/browser/google/google_url_tracker_navigation_helper_impl.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 "chrome/browser/google/google_url_tracker_navigation_helper_impl.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 
 GoogleURLTrackerNavigationHelperImpl::
     GoogleURLTrackerNavigationHelperImpl() : tracker_(NULL) {
 }
 
 GoogleURLTrackerNavigationHelperImpl::
     ~GoogleURLTrackerNavigationHelperImpl() {
 }
 
 void GoogleURLTrackerNavigationHelperImpl::SetGoogleURLTracker(
     GoogleURLTracker* tracker) {
   DCHECK(tracker);
   tracker_ = tracker;
 }
 
-void GoogleURLTrackerNavigationHelperImpl::SetListeningForNavigationStart(
-    bool listen) {
-  if (listen) {
-    registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
-        content::NotificationService::AllBrowserContextsAndSources());
-  } else {
-    registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
-        content::NotificationService::AllBrowserContextsAndSources());
-  }
-}
-
-bool GoogleURLTrackerNavigationHelperImpl::IsListeningForNavigationStart() {
-  return registrar_.IsRegistered(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
-      content::NotificationService::AllBrowserContextsAndSources());
-}
-
 void GoogleURLTrackerNavigationHelperImpl::SetListeningForNavigationCommit(
     const content::NavigationController* nav_controller,
     bool listen) {
   content::NotificationSource navigation_controller_source =
       content::Source<content::NavigationController>(nav_controller);
   if (listen) {
     registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
                     navigation_controller_source);
   } else {
     registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
@@ skipping 42 matching lines @@
           nav_controller_source).ptr();
   content::WebContents* web_contents = controller->GetWebContents();
   return content::Source<content::WebContents>(web_contents);
 }
 
 void GoogleURLTrackerNavigationHelperImpl::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   switch (type) {
-    case content::NOTIFICATION_NAV_ENTRY_PENDING: {
-      content::NavigationController* controller =
-          content::Source<content::NavigationController>(source).ptr();
-      content::WebContents* web_contents = controller->GetWebContents();
-      InfoBarService* infobar_service =
-          InfoBarService::FromWebContents(web_contents);
-      // 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) {
-        tracker_->OnNavigationPending(
-            controller, infobar_service,
-            controller->GetPendingEntry()->GetUniqueID());
-      }
-      break;
-    }
-
     case content::NOTIFICATION_NAV_ENTRY_COMMITTED: {
       content::NavigationController* controller =
           content::Source<content::NavigationController>(source).ptr();
       // Here we're only listening to notifications where we already know
       // there's an associated InfoBarService.
       content::WebContents* web_contents = controller->GetWebContents();
       InfoBarService* infobar_service =
           InfoBarService::FromWebContents(web_contents);
       DCHECK(infobar_service);
       const GURL& search_url = controller->GetActiveEntry()->GetURL();
       if (!search_url.is_valid())  // Not clear if this can happen.
         tracker_->OnTabClosed(controller);
       tracker_->OnNavigationCommitted(infobar_service, search_url);
       break;
     }
 
     case content::NOTIFICATION_WEB_CONTENTS_DESTROYED: {
       content::WebContents* web_contents =
           content::Source<content::WebContents>(source).ptr();
       tracker_->OnTabClosed(&web_contents->GetController());
       break;
     }
 
     default:
       NOTREACHED() << "Unknown notification received:" << type;
   }
 }