Remove useless FaviconHandler::PageChangedSinceFaviconWasRequested()

components/favicon/ios/web_favicon_driver.h

 // 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.
 
 #ifndef COMPONENTS_FAVICON_IOS_WEB_FAVICON_DRIVER_H_
 #define COMPONENTS_FAVICON_IOS_WEB_FAVICON_DRIVER_H_
 
 #include "components/favicon/core/favicon_driver_impl.h"
 #include "ios/web/public/web_state/web_state_observer.h"
 #include "ios/web/public/web_state/web_state_user_data.h"
@@ skipping 11 matching lines @@
 class WebFaviconDriver : public web::WebStateObserver,
                          public web::WebStateUserData<WebFaviconDriver>,
                          public FaviconDriverImpl {
  public:
   static void CreateForWebState(web::WebState* web_state,
                                 FaviconService* favicon_service,
                                 history::HistoryService* history_service,
                                 bookmarks::BookmarkModel* bookmark_model);
 
   // FaviconDriver implementation.
+  void FetchFavicon(const GURL& url) override;
   gfx::Image GetFavicon() const override;
   bool FaviconIsValid() const override;
   int StartDownload(const GURL& url, int max_bitmap_size) override;
   bool IsOffTheRecord() override;
   GURL GetActiveURL() override;
   bool GetActiveFaviconValidity() override;
   void SetActiveFaviconValidity(bool valid) override;
   GURL GetActiveFaviconURL() override;
   void SetActiveFaviconURL(const GURL& url) override;
   void SetActiveFaviconImage(const gfx::Image& image) override;
 
  private:
   friend class web::WebStateUserData<WebFaviconDriver>;
 
   WebFaviconDriver(web::WebState* web_state,
                    FaviconService* favicon_service,
                    history::HistoryService* history_service,
                    bookmarks::BookmarkModel* bookmark_model);
   ~WebFaviconDriver() override;
 
+  // Returns whether the active URL has changed since FetchFavicon() was called.
+  bool ActiveURLChangedSinceFetchFavicon();
+
   // web::WebStateObserver implementation.
   void FaviconUrlUpdated(
       const std::vector<web::FaviconURL>& candidates) override;
 
   // Returns the active navigation entry's favicon.
   web::FaviconStatus& GetFaviconStatus();
 
+  // The URL passed to FetchFavicon().
+  GURL fetch_favicon_url_;
+
   DISALLOW_COPY_AND_ASSIGN(WebFaviconDriver);
 };
 
 }  // namespace favicon
 
 #endif  // COMPONENTS_FAVICON_IOS_WEB_FAVICON_DRIVER_H_