DevTools: DOMStorage undo/redo feature

Source/core/inspector/InspectorDOMStorageAgent.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 95 matching lines @@
 void InspectorDOMStorageAgent::enable(ErrorString*)
 {
     m_state->setBoolean(DOMStorageAgentState::domStorageAgentEnabled, true);
 }
 
 void InspectorDOMStorageAgent::disable(ErrorString*)
 {
     m_state->setBoolean(DOMStorageAgentState::domStorageAgentEnabled, false);
 }
 
+void InspectorDOMStorageAgent::getDOMStorageItem(ErrorString* errorString, const RefPtr<InspectorObject>& storageId, const String& key, String* value)
+{
+    Frame* frame;
+    RefPtr<StorageArea> storageArea = findStorageArea(errorString, storageId, frame);
+    if (!storageArea)
+        return;
+
+    ExceptionCode ec = 0;
+    *value = storageArea->getItem(key, ec, frame);
+    if (hadException(ec, errorString))
+        return;

[apavlov, 2013/05/08 11:41:36]

This doesn't make much sense, does it?

+}
+
 void InspectorDOMStorageAgent::getDOMStorageItems(ErrorString* errorString, const RefPtr<InspectorObject>& storageId, RefPtr<TypeBuilder::Array<TypeBuilder::Array<String> > >& items)
 {
     Frame* frame;
     RefPtr<StorageArea> storageArea = findStorageArea(errorString, storageId, frame);
     if (!storageArea)
         return;
 
     RefPtr<TypeBuilder::Array<TypeBuilder::Array<String> > > storageItems = TypeBuilder::Array<TypeBuilder::Array<String> >::create();
 
     ExceptionCode ec = 0;
@@ skipping 114 matching lines @@
 
 void InspectorDOMStorageAgent::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::InspectorDOMStorageAgent);
     InspectorBaseAgent<InspectorDOMStorageAgent>::reportMemoryUsage(memoryObjectInfo);
     info.addWeakPointer(m_frontend);
 }
 
 } // namespace WebCore