Implement suspend() and resume() for OfflineAudioContext

third_party/WebKit/Source/modules/webaudio/AudioContext.h

 // 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.
 
 #ifndef AudioContext_h
 #define AudioContext_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "modules/webaudio/AbstractAudioContext.h"
@@ skipping 11 matching lines @@
 public:
     static AbstractAudioContext* create(Document&, ExceptionState&);
 
     ~AudioContext() override;
     DECLARE_VIRTUAL_TRACE();
 
     ScriptPromise closeContext(ScriptState*) final;
     bool isContextClosed() const final;
 
     ScriptPromise suspendContext(ScriptState*) final;
+    ScriptPromise suspendContext(ScriptState*, double) final;
     ScriptPromise resumeContext(ScriptState*) final;
 
     bool hasRealtimeConstraint() final { return true; }
 
 protected:
     AudioContext(Document&);
 
     void didClose() final;
 
 private:
     void stopRendering();
 
     unsigned m_contextId;
     Member<ScriptPromiseResolver> m_closeResolver;
 };
 
 }
 
 #endif // AudioContext_h