Revert of Port HistoryService::GetVisibleVisitCountToHost to CancelableTaskTracker

chrome/browser/safe_browsing/safe_browsing_blocking_page.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.
 //
 // Implementation of the SafeBrowsingBlockingPage class.
 
 #include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
 
 #include <string>
 
@@ skipping 268 matching lines @@
   else
     interstitial_type_ = TYPE_PHISHING;
 
   RecordUserAction(SHOW);
   HistoryService* history_service = HistoryServiceFactory::GetForProfile(
           Profile::FromBrowserContext(web_contents->GetBrowserContext()),
           Profile::EXPLICIT_ACCESS);
   if (history_service) {
     history_service->GetVisibleVisitCountToHost(
         url_,
+        &request_consumer_,
         base::Bind(&SafeBrowsingBlockingPage::OnGotHistoryCount,
-                   base::Unretained(this)),
-        &request_tracker_);
+                  base::Unretained(this)));
   }
 
   if (!is_main_frame_load_blocked_) {
     navigation_entry_index_to_remove_ =
         web_contents->GetController().GetLastCommittedEntryIndex();
   } else {
     navigation_entry_index_to_remove_ = -1;
   }
 
   // Start computing malware details. They will be sent only
@@ skipping 285 matching lines @@
       web_contents_->GetController().GetLastCommittedEntryIndex();
   if (navigation_entry_index_to_remove_ != -1 &&
       navigation_entry_index_to_remove_ != last_committed_index &&
       !web_contents_->IsBeingDestroyed()) {
     CHECK(web_contents_->GetController().RemoveEntryAtIndex(
         navigation_entry_index_to_remove_));
     navigation_entry_index_to_remove_ = -1;
   }
 }
 
-void SafeBrowsingBlockingPage::OnGotHistoryCount(bool success,
+void SafeBrowsingBlockingPage::OnGotHistoryCount(HistoryService::Handle handle,
+                                                 bool success,
                                                  int num_visits,
                                                  base::Time first_visit) {
   if (success)
     num_visits_ = num_visits;
 }
 
 void SafeBrowsingBlockingPage::RecordUserAction(BlockingPageEvent event) {
   // This enum is used for a histogram.  Don't reorder, delete, or insert
   // elements.  New elements should be added before MAX_ACTION only.
   enum {
@@ skipping 785 matching lines @@
           IDS_PHISHING_V3_PRIMARY_PARAGRAPH,
           base::UTF8ToUTF16(url_.host())));
   load_time_data->SetString(
       "explanationParagraph",
       l10n_util::GetStringFUTF16(IDS_PHISHING_V3_EXPLANATION_PARAGRAPH,
                                  base::UTF8ToUTF16(url_.host())));
   load_time_data->SetString(
       "finalParagraph",
       l10n_util::GetStringUTF16(IDS_PHISHING_V3_PROCEED_PARAGRAPH));
 }