Layout test fast/filesystem/file-writer-truncate-extend.html is flaky on Chromium's Windows Debug bot, which may also indicate problems on other ports. Flakiness dashboard link: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#showExpectations=true&tests=fast%2Ffilesystem%2Ffile-writer-truncate-extend.html Actual difference in results: - PASS Truncate extension verified. + FAIL Got error: total: 0;loaded: 0;lengthComputable: true;clipboardData: undefined;cancelBubble: false;returnValue: true;srcElement: [object FileReader];defaultPrevented: false;timeStamp: 1342547290039;cancelable: true;bubbles: false;eventPhase: 2;currentTarget: [object FileReader];target: [object FileReader];type: error;stopPropagation: function stopPropagation() { [native code] };preventDefault: function preventDefault() { [native code] };initEvent: function initEvent() { [native code] };stopImmediatePropagation: function stopImmediatePropagation() { [native code] };NONE: 0;CAPTURING_PHASE: 1;AT_TARGET: 2;BUBBLING_PHASE: 3;MOUSEDOWN: 1;MOUSEUP: 2;MOUSEOVER: 4;MOUSEOUT: 8;MOUSEMOVE: 16;MOUSEDRAG: 32;CLICK: 64;DBLCLICK: 128;KEYDOWN: 256;KEYUP: 512;KEYPRESS: 1024;DRAGDROP: 2048;FOCUS: 4096;BLUR: 8192;SELECT: 16384;CHANGE: 32768;