Web Timing should be enabled for the Qt port. This involves the following: 1. Implement http://trac.webkit.org/browser/trunk/WebCore/platform/network/ResourceLoadTiming.h 2. Flip WEB_TIMING flag
It looks like all ports, including Windows, enable WEB_TIMING. Lets close. Tools/Scripts/webkitperl/FeatureList.pm 408: define => "ENABLE_WEB_TIMING", default => 1, value => \$webTimingSupport }, Tools/TestWebKitAPI/Configurations/FeatureDefines.xcconfig 199:ENABLE_WEB_TIMING = ENABLE_WEB_TIMING; Source/cmake/OptionsEfl.cmake 133:WEBKIT_OPTION_DEFAULT_PORT_VALUE(ENABLE_WEB_TIMING PUBLIC ON) Source/cmake/OptionsWin.cmake 61:WEBKIT_OPTION_DEFAULT_PORT_VALUE(ENABLE_WEB_TIMING PUBLIC ON) Source/cmake/WebKitFeatures.cmake 193: WEBKIT_OPTION_DEFINE(ENABLE_WEB_TIMING "Toggle Web Timing support" PRIVATE ON) Source/cmake/tools/vsprops/FeatureDefines.props 77: <ENABLE_WEB_TIMING>ENABLE_WEB_TIMING</ENABLE_WEB_TIMING> Source/cmake/tools/vsprops/FeatureDefinesCairo.props 76: <ENABLE_WEB_TIMING>ENABLE_WEB_TIMING</ENABLE_WEB_TIMING>