Convert Budget to BudgetService.

third_party/WebKit/Source/modules/budget/NavigatorBudget.h

 // Copyright 2016 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.
 
 #ifndef NavigatorBudget_h
 #define NavigatorBudget_h
 
 #include "platform/Supplementable.h"
 
 namespace blink {
 
-class Budget;
+class BudgetService;
 class Navigator;
 
 // This exposes the budget object on the Navigator partial interface.
 class NavigatorBudget final
     : public GarbageCollected<NavigatorBudget>
     , public Supplement<Navigator> {
     USING_GARBAGE_COLLECTED_MIXIN(NavigatorBudget);
     WTF_MAKE_NONCOPYABLE(NavigatorBudget);
 
 public:
     static NavigatorBudget& from(Navigator&);
 
-    static Budget* budget(Navigator&);
-    Budget* budget();
+    static BudgetService* budget(Navigator&);
+    BudgetService* budget();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     NavigatorBudget();
     static const char* supplementName();
 
-    Member<Budget> m_budget;
+    Member<BudgetService> m_budget;
 };
 
 } // namespace blink
 
 #endif // NavigatorBudget_h