Bug 564929 - Qt - Conditional jump or move depends on uninitialised value in nsWindow::MakeFullScreen r=romaxa

widget/src/qt/nsWindow.cpp

@@ -184,6 +184,7 @@ nsWindow::nsWindow()
     mActivatePending     = PR_FALSE;
     mWindowType          = eWindowType_child;
     mSizeState           = nsSizeMode_Normal;
+    mLastSizeMode        = nsSizeMode_Normal;
     mPluginType          = PluginType_NONE;
     mQCursor             = Qt::ArrowCursor;
     mNeedsResize         = PR_FALSE;