Remove unused HasUserGestureRequest and unneeded request_url_ in PermissionRequestManager

chrome/browser/permissions/permission_request_manager.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/permissions/permission_request_manager.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
@@ skipping 95 matching lines @@
 void PermissionRequestManager::AddRequest(PermissionRequest* request) {
   // TODO(tsergeant): change the UMA to no longer mention bubbles.
   base::RecordAction(base::UserMetricsAction("PermissionBubbleRequest"));
 
   // TODO(gbillock): is there a race between an early request on a
   // newly-navigated page and the to-be-cleaned-up requests on the previous
   // page? We should maybe listen to DidStartNavigationToPendingEntry (and
   // 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()));
 
   // Don't re-add an existing request or one with a duplicate text request.
   PermissionRequest* existing_request = GetExistingRequest(request);
   if (existing_request) {
     // |request| is a duplicate. Add it to |duplicate_requests_| unless it's the
     // same object as |existing_request| or an existing duplicate.
     if (request == existing_request)
       return;
@@ skipping 285 matching lines @@
   std::vector<PermissionRequest*>::iterator requests_iter;
   for (requests_iter = requests_.begin();
        requests_iter != requests_.end();
        requests_iter++) {
     RequestFinishedIncludingDuplicates(*requests_iter);
   }
   requests_.clear();
   accept_states_.clear();
   if (queued_requests_.size() || queued_frame_requests_.size())
     TriggerShowBubble();
-  else
-    request_url_ = GURL();
 }
 
 void PermissionRequestManager::CancelPendingQueues() {
   std::vector<PermissionRequest*>::iterator requests_iter;
   for (requests_iter = queued_requests_.begin();
        requests_iter != queued_requests_.end();
        requests_iter++) {
     RequestFinishedIncludingDuplicates(*requests_iter);
   }
   for (requests_iter = queued_frame_requests_.begin();
@@ skipping 92 matching lines @@
     case DENY_ALL:
       Deny();
       break;
     case DISMISS:
       Closing();
       break;
     case NONE:
       NOTREACHED();
   }
 }