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

chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h

Index: chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h
diff --git a/chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h b/chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h
index 0e0fabce0b8b19a9861ae279a77317a7680c5d4f..8babaec5b2ea5e0b8ef33769d5d6e8f63d4c41c6 100644
--- a/chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h
+++ b/chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h
@@ -20,10 +20,6 @@ namespace chrome {
 struct NavigateParams;
 }
 
-namespace blink {
-struct WebWindowFeatures;
-}
-
 class GURL;
 
 // Per-tab class to manage blocked popups.
@@ -38,8 +34,7 @@ class PopupBlockerTabHelper
 
   // 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);
@@ -62,8 +57,7 @@ class 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);