[webkit-reviews] review requested: [Bug 92272] ProgressTracker never completes if iframe detached during parsing : [Attachment 158893] Add a helper class to match ProgressTracker calls

[bugzilla-daemon at webkit.org]

Nate Chapin <japhet at chromium.org> has asked  for review:
Bug 92272: ProgressTracker never completes if iframe detached during parsing
https://bugs.webkit.org/show_bug.cgi?id=92272

Attachment 158893: Add a helper class to match ProgressTracker calls
https://bugs.webkit.org/attachment.cgi?id=158893&action=review

------- Additional Comments from Nate Chapin <japhet at chromium.org>
This patch cheats a bit: Instead of trying to ensure DocumentLoader does the
right thing, solve the problem more generally by adding a helper class to
FrameLoader that counts progressStarted()/progressCompleted() calls for a given
frame and makes sure they're matched before frame detach.