[cleanup] WebPermissionClient.h is no longer present.

third_party/WebKit/Source/modules/permissions/PermissionController.cpp

 // 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 "modules/permissions/PermissionController.h"
 
 #include "core/frame/LocalFrame.h"
 #include "platform/RuntimeEnabledFeatures.h"
-#include "public/platform/modules/permissions/WebPermissionClient.h"
 
 namespace blink {
 
 PermissionController::~PermissionController() {}
 
-void PermissionController::provideTo(LocalFrame& frame,
-                                     WebPermissionClient* client) {
+void PermissionController::provideTo(LocalFrame& frame) {
   ASSERT(RuntimeEnabledFeatures::permissionsEnabled());
 
-  PermissionController* controller = new PermissionController(frame, client);
+  PermissionController* controller = new PermissionController(frame);
   Supplement<LocalFrame>::provideTo(frame, supplementName(), controller);
 }
 
 PermissionController* PermissionController::from(LocalFrame& frame) {
   return static_cast<PermissionController*>(
       Supplement<LocalFrame>::from(frame, supplementName()));
 }
 
-PermissionController::PermissionController(LocalFrame& frame,
-                                           WebPermissionClient* client)
-    : DOMWindowProperty(&frame), m_client(client) {}
+PermissionController::PermissionController(LocalFrame& frame)
+    : DOMWindowProperty(&frame) {}
 
 const char* PermissionController::supplementName() {
   return "PermissionController";
 }
 
-WebPermissionClient* PermissionController::client() const {
-  return m_client;
-}
-
 void PermissionController::frameDestroyed() {
-  m_client = nullptr;
   DOMWindowProperty::frameDestroyed();
 }
 
 DEFINE_TRACE(PermissionController) {
   DOMWindowProperty::trace(visitor);
   Supplement<LocalFrame>::trace(visitor);
 }
 
 }  // namespace blink