SVGTests should lazyAttach

SVGTests::handleAttributeChange should use lazyAttach instead of calling
attach manually.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=150822

R=pdr@chromium.org

Review URL: https://codereview.chromium.org/15398006

git-svn-id: svn://svn.chromium.org/blink/trunk@150841 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed