DevTools: Revoke undo/redo due to inconsistent behavior determining the source of storage mutation

Source/core/inspector/InspectorDOMStorageAgent.cpp

Index: Source/core/inspector/InspectorDOMStorageAgent.cpp
diff --git a/Source/core/inspector/InspectorDOMStorageAgent.cpp b/Source/core/inspector/InspectorDOMStorageAgent.cpp
index 4b2a118bd66dc516e4d8a74293c9eeee5bb6f20e..4420d1b901672293845e4b0901a9303cfd8fee93 100644
--- a/Source/core/inspector/InspectorDOMStorageAgent.cpp
+++ b/Source/core/inspector/InspectorDOMStorageAgent.cpp
@@ -108,22 +108,6 @@ void InspectorDOMStorageAgent::disable(ErrorString*)
     m_state->setBoolean(DOMStorageAgentState::domStorageAgentEnabled, false);
 }
 
-void InspectorDOMStorageAgent::getValue(ErrorString* errorString, const RefPtr<JSONObject>& storageId, const String& key, TypeBuilder::OptOutput<WTF::String>* value)
-{
-    Frame* frame;
-    OwnPtr<StorageArea> storageArea = findStorageArea(errorString, storageId, frame);
-    if (!storageArea)
-        return;
-
-    TrackExceptionState es;
-    bool keyPresent = storageArea->contains(key, es, frame);
-    if (hadException(es, errorString) || !keyPresent)
-        return;
-
-    *value = storageArea->getItem(key, es, frame);
-    hadException(es, errorString);
-}
-
 void InspectorDOMStorageAgent::getDOMStorageItems(ErrorString* errorString, const RefPtr<JSONObject>& storageId, RefPtr<TypeBuilder::Array<TypeBuilder::Array<String> > >& items)
 {
     Frame* frame;