Fix cancelling permission requests on Android when the PermissionRequestManager is enabled

chrome/browser/ui/permission_bubble/mock_permission_prompt.cc

 // 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.
 
 #include "chrome/browser/ui/permission_bubble/mock_permission_prompt.h"
 
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "chrome/browser/permissions/permission_request_manager.h"
 #include "chrome/browser/ui/permission_bubble/mock_permission_prompt_factory.h"
 
 MockPermissionPrompt::~MockPermissionPrompt() {
   Hide();
 }
 
 void MockPermissionPrompt::Show(const std::vector<PermissionRequest*>& requests,
                                 const std::vector<bool>& accept_state) {
+  if (IsVisible())
+    return;
   factory_->ShowView(this);
   factory_->show_count_++;
   factory_->requests_count_ = manager_->requests_.size();
   factory_->total_requests_count_ += manager_->requests_.size();
   factory_->UpdateResponseType();
   is_visible_ = true;
 }
 
-bool MockPermissionPrompt::CanAcceptRequestUpdate() {
+bool MockPermissionPrompt::MaybeCancelRequest() {
+  if (can_update_ui_)
+    Hide();
   return can_update_ui_;
 }
 
 bool MockPermissionPrompt::HidesAutomatically() {
   return false;
 }
 
 void MockPermissionPrompt::Hide() {
   if (is_visible_ && factory_)
     factory_->HideView(this);
@@ skipping 11 matching lines @@
   NOTREACHED();
   return nullptr;
 }
 
 MockPermissionPrompt::MockPermissionPrompt(MockPermissionPromptFactory* factory,
                                            PermissionRequestManager* manager)
     : factory_(factory),
       manager_(manager),
       can_update_ui_(true),
       is_visible_(false) {}