The following tests started failing on GTK Linux 64-bit Debug between r112948 and r112955 (inclusive): fast/events/ondrop-text-html.html editing/pasteboard/get-data-text-plain-drop.html http://trac.webkit.org/log/trunk?rev=112955&stop_rev=112948&limit=9 http://build.webkit.org/results/GTK%20Linux%2064-bit%20Debug/r112947%20(32081)/results.html passed http://build.webkit.org/results/GTK%20Linux%2064-bit%20Debug/r112955%20(32082)/results.html failed Both tests hit an ASSERT: STDERR: ASSERTION FAILED: !m_isHandlingDrag STDERR: ../../Source/WebCore/page/DragController.cpp(425) : bool WebCore::DragController::concludeEditDrag(WebCore::DragData*) I'll provide a full stack-trace when my Debug build is finished. Skipping those tests for now.
Daniel, http://trac.webkit.org/changeset/112954 seems like the most likely culprit for these new assertion failures.
This ended up being reverted in http://trac.webkit.org/changeset/113004, probably for the same reason.