Notify DataUseTabModel of navigations and tab closures

chrome/browser/android/data_usage/data_use_tab_model.cc

 // Copyright 2015 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/android/data_usage/data_use_tab_model.h"
 
 #include "base/time/time.h"
 #include "chrome/browser/android/data_usage/external_data_use_observer.h"
 #include "chrome/browser/android/data_usage/tab_data_use_entry.h"
 
@@ skipping 29 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 base::WeakPtr<DataUseTabModel> DataUseTabModel::GetWeakPtr() {
   DCHECK(thread_checker_.CalledOnValidThread());
   return weak_factory_.GetWeakPtr();
 }
 
 void DataUseTabModel::OnNavigationEvent(int32_t tab_id,
                                         TransitionType transition,
-                                        const GURL& url,
-                                        const std::string& package) {
+                                        const GURL& url) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(IsValidTabID(tab_id));
 
-  // TODO(rajendrant): implementation to use package.
   switch (transition) {
     case TRANSITION_OMNIBOX_SEARCH:
     case TRANSITION_FROM_EXTERNAL_APP: {
       // Enter events.
       std::string label;
       if (data_use_observer_->Matches(url, &label)) {
         // TODO(rajendrant): Need to handle scenarios where these labels change
         // in the middle of a tab session. Should |data_use_observer_| notify us
         // about a cleanup. What happens to currently active tab sessions.
         DCHECK(!label.empty());
@@ skipping 123 matching lines @@
       }
     }
     DCHECK(oldest_tab_entry_iterator != active_tabs_.end());
     active_tabs_.erase(oldest_tab_entry_iterator);
   }
 }
 
 }  // namespace android
 
 }  // namespace chrome