QtBase_5.4_Integration #323: SUCCESS
Tested changes (refs/builds/5.4_1411173134):
http://codereview.qt-project.org/93884 [PS6] - a11y: Don't try to update accessibility if there's no interface
http://codereview.qt-project.org/95307 [PS1] - a11y: Make QAccessibleButton and friends resolve role dynamically