DevTools: validate protocol input parameters.

third_party/WebKit/Source/modules/storage/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 175 matching lines @@
     else if (newValue.isNull())
         frontend()->domStorageItemRemoved(id.release(), key);
     else if (oldValue.isNull())
         frontend()->domStorageItemAdded(id.release(), key, newValue);
     else
         frontend()->domStorageItemUpdated(id.release(), key, oldValue, newValue);
 }
 
 StorageArea* InspectorDOMStorageAgent::findStorageArea(ErrorString* errorString, PassOwnPtr<protocol::DOMStorage::StorageId> storageId, LocalFrame*& targetFrame)
 {
-    if (!storageId->hasSecurityOrigin() || !storageId->hasIsLocalStorage()) {
-        if (errorString)
-            *errorString = "Invalid storageId format";
-        return nullptr;
-    }
-
     String securityOrigin = storageId->getSecurityOrigin();
     bool isLocalStorage = storageId->getIsLocalStorage();
 
     if (!m_page->mainFrame()->isLocalFrame())
         return nullptr;
 
     OwnPtrWillBeRawPtr<InspectedFrames> inspectedFrames = InspectedFrames::create(m_page->deprecatedLocalMainFrame());
     LocalFrame* frame = inspectedFrames->frameWithSecurityOrigin(securityOrigin);
     if (!frame) {
         if (errorString)
             *errorString = "LocalFrame not found for the given security origin";
         return nullptr;
     }
     targetFrame = frame;
 
     if (isLocalStorage)
         return StorageNamespace::localStorageArea(frame->document()->securityOrigin());
     StorageNamespace* sessionStorage = StorageNamespaceController::from(m_page)->sessionStorage();
     if (!sessionStorage) {
         if (errorString)
             *errorString = "SessionStorage is not supported";
         return nullptr;
     }
     return sessionStorage->storageArea(frame->document()->securityOrigin());
 }
 
 } // namespace blink