Remove unused HasUserGestureRequest and unneeded request_url_ in PermissionRequestManager

chrome/browser/permissions/permission_request_manager.cc

Index: chrome/browser/permissions/permission_request_manager.cc
diff --git a/chrome/browser/permissions/permission_request_manager.cc b/chrome/browser/permissions/permission_request_manager.cc
index 2a7cf3ac5729cd357ac67051284a3872ce8cc374..93a9794d448bcede889af32354e1d8fa9bf0edc4 100644
--- a/chrome/browser/permissions/permission_request_manager.cc
+++ b/chrome/browser/permissions/permission_request_manager.cc
@@ -113,7 +113,7 @@ void PermissionRequestManager::AddRequest(PermissionRequest* request) {
   // any other renderer-side nav initiations?). Double-check this for
   // correct behavior on interstitials -- we probably want to basically queue
   // any request for which GetVisibleURL != GetLastCommittedURL.
-  request_url_ = web_contents()->GetLastCommittedURL();
+  const GURL& request_url_ = web_contents()->GetLastCommittedURL();
   bool is_main_frame = url::Origin(request_url_)
                            .IsSameOriginWith(url::Origin(request->GetOrigin()));
 
@@ -419,8 +419,6 @@ void PermissionRequestManager::FinalizeBubble() {
   accept_states_.clear();
   if (queued_requests_.size() || queued_frame_requests_.size())
     TriggerShowBubble();
-  else
-    request_url_ = GURL();
 }
 
 void PermissionRequestManager::CancelPendingQueues() {