RootWindowAttachmentObserver 2117 ui/aura/window_unittest.cc   RootWindowAttachmentObserver() : added_count_(0), removed_count_(0) {}
RootWindowAttachmentObserver 2141 ui/aura/window_unittest.cc   DISALLOW_COPY_AND_ASSIGN(RootWindowAttachmentObserver);
RootWindowAttachmentObserver 2145 ui/aura/window_unittest.cc   RootWindowAttachmentObserver observer;