nsWebShell::nsWebShell()
nsWebShell::nsWebShell() : nsDocShell()
nsWebShell::nsWebShell(){  NS_INIT_REFCNT();  mHistoryIndex = -1;  mScrollPref = nsScrollPreference_kAuto;  mScriptGlobal = nsnull;  mScriptContext = nsnull;	mThreadEventQueue = nsnull;  InitFrameData(PR_TRUE);  mIsFrame = PR_FALSE;	mWebShellType = nsWebShellContent;  mChromeShell = nsnull;  mSHist = nsnull;  mIsInSHist = PR_FALSE;  mDefaultCharacterSet = "";  mProcessedEndDocumentLoad = PR_FALSE;  mHintCharset = "";  mHintCharsetSource = kCharsetUninitialized;  mForceCharacterSet = "";  mHistoryService = nsnull;#ifdef NECKO  mPrompter = nsnull;#else  mNetSupport = nsnull;#endif}