[User Timing] Throw a SyntaxError for performance.measure if mark name is not found This used to be part of User Timing Level 1 and User Timing Level 2 didn't include the text. Lets just be consistent and throw a SyntaxError (other browsers I tested do). There is an open issue on this: https://github.com/w3c/user-timing/issues/21
Created attachment 302365 [details] [PATCH] Proposed Fix
Comment on attachment 302365 [details] [PATCH] Proposed Fix Clearing flags on attachment: 302365 Committed r212806: <http://trac.webkit.org/changeset/212806>
All reviewed patches have been landed. Closing bug.