Move throttling of background timers into the renderer scheduler

third_party/WebKit/Source/core/testing/NullExecutionContext.h

 // 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.
 
 #ifndef NullExecutionContext_h
 #define NullExecutionContext_h
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/SecurityContext.h"
 #include "core/events/EventQueue.h"
@@ skipping 19 matching lines @@
     EventQueue* eventQueue() const override { return m_queue.get(); }
 
     bool tasksNeedSuspension() override { return m_tasksNeedSuspension; }
     void setTasksNeedSuspension(bool flag) { m_tasksNeedSuspension = flag; }
 
     void reportBlockedScriptExecutionToInspector(const String& directiveText) override { }
     void didUpdateSecurityOrigin() override { }
     SecurityContext& securityContext() override { return *this; }
     DOMTimerCoordinator* timers() override { return nullptr; }
 
-    double timerAlignmentInterval() const;
-
     void addConsoleMessage(PassRefPtrWillBeRawPtr<ConsoleMessage>) override { }
     void logExceptionToConsole(const String& errorMessage, int scriptId, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtrWillBeRawPtr<ScriptCallStack>) override { }
 
     bool isSecureContext(String& errorMessage, const SecureContextCheck = StandardSecureContextCheck) const override;
 
     DEFINE_INLINE_TRACE()
     {
         visitor->trace(m_queue);
         SecurityContext::trace(visitor);
         ExecutionContext::trace(visitor);
@@ skipping 14 matching lines @@
 private:
     bool m_tasksNeedSuspension;
     OwnPtrWillBeMember<EventQueue> m_queue;
 
     KURL m_dummyURL;
 };
 
 } // namespace blink
 
 #endif // NullExecutionContext_h