Split "Online" and "Offline" AudioContext processing

Source/modules/webaudio/OfflineAudioContext.cpp

Index: Source/modules/webaudio/OfflineAudioContext.cpp
diff --git a/Source/modules/webaudio/OfflineAudioContext.cpp b/Source/modules/webaudio/OfflineAudioContext.cpp
index d3488419e947e373d50f13cb105be0fb0604d178..357aac783f0910cb6dac2d2fb4aee27b9a0c3867 100644
--- a/Source/modules/webaudio/OfflineAudioContext.cpp
+++ b/Source/modules/webaudio/OfflineAudioContext.cpp
@@ -28,6 +28,7 @@
 
 #include "bindings/core/v8/ExceptionMessages.h"
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptState.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
@@ -125,6 +126,31 @@ ScriptPromise OfflineAudioContext::startOfflineRendering(ScriptState* scriptStat
     return m_offlineResolver->promise();
 }
 
+ScriptPromise OfflineAudioContext::closeContext(ScriptState* scriptState)
+{
+    return ScriptPromise::rejectWithDOMException(
+        scriptState,
+        DOMException::create(InvalidAccessError, "cannot close an OfflineAudioContext."));
+}
+
+ScriptPromise OfflineAudioContext::suspendContext(ScriptState* scriptState)
+{
+    return ScriptPromise::rejectWithDOMException(
+        scriptState,
+        DOMException::create(
+            InvalidAccessError,
+            "cannot suspend an OfflineAudioContext"));
+}
+
+ScriptPromise OfflineAudioContext::resumeContext(ScriptState* scriptState)
+{
+    return ScriptPromise::rejectWithDOMException(
+        scriptState,
+        DOMException::create(
+            InvalidAccessError,
+            "cannot resume an OfflineAudioContext"));
+}
+
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)