Remove unused WebWindowFeatures from popup blocker, reducing WebString use in browser

chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h

 // Copyright 2013 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 CHROME_BROWSER_UI_BLOCKED_CONTENT_POPUP_BLOCKER_TAB_HELPER_H_
 #define CHROME_BROWSER_UI_BLOCKED_CONTENT_POPUP_BLOCKER_TAB_HELPER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 
 #include "base/id_map.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 namespace chrome {
 struct NavigateParams;
 }
 
-namespace blink {
-struct WebWindowFeatures;
-}
-
 class GURL;
 
 // Per-tab class to manage blocked popups.
 class PopupBlockerTabHelper
     : public content::WebContentsObserver,
       public content::WebContentsUserData<PopupBlockerTabHelper> {
  public:
   // Mapping from popup IDs to blocked popup requests.
   typedef std::map<int32_t, GURL> PopupIdMap;
 
   ~PopupBlockerTabHelper() override;
 
   // Returns true if the popup request defined by |params| should be blocked.
   // In that case, it is also added to the |blocked_popups_| container.
-  bool MaybeBlockPopup(const chrome::NavigateParams& params,
-                       const blink::WebWindowFeatures& window_features);
+  bool MaybeBlockPopup(const chrome::NavigateParams& params);
 
   // Adds a popup request to the |blocked_popups_| container.
   void AddBlockedPopup(const BlockedWindowParams& params);
 
   // Creates the blocked popup with |popup_id|.
   void ShowBlockedPopup(int32_t popup_id);
 
   // Returns the number of blocked popups.
   size_t GetBlockedPopupsCount() const;
 
   PopupIdMap GetBlockedPopupRequests();
 
   // content::WebContentsObserver overrides:
   void DidFinishNavigation(
       content::NavigationHandle* navigation_handle) override;
 
  private:
   struct BlockedRequest;
   friend class content::WebContentsUserData<PopupBlockerTabHelper>;
 
   explicit PopupBlockerTabHelper(content::WebContents* web_contents);
 
-  void AddBlockedPopup(const chrome::NavigateParams& params,
-                       const blink::WebWindowFeatures& window_features);
+  void AddBlockedPopup(const chrome::NavigateParams& params);
 
   // Called when the blocked popup notification is shown or hidden.
   void PopupNotificationVisibilityChanged(bool visible);
 
   IDMap<std::unique_ptr<BlockedRequest>> blocked_popups_;
 
   DISALLOW_COPY_AND_ASSIGN(PopupBlockerTabHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_BLOCKED_CONTENT_POPUP_BLOCKER_TAB_HELPER_H_