Blink gardening: updated expectations

BUG=396941
TBR=morrita
NOTRY=true

Review URL: https://codereview.chromium.org/683383003

git-svn-id: svn://svn.chromium.org/blink/trunk@184726 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: remove dependencies on TimelineUIUtilsImpl in tracing based Timeline

Removed load test as it tests old timeline implementation. There is tracing-timeline-load.html for the tracing based implementation.

Change in TracingTimelineUIUtils.js is actually a improved version of the code added in https://codereview.chromium.org/391373008 as we want to rewrite the text content only in case of JSFrame records.

BUG=428700

Review URL: https://codereview.chromium.org/692043002

git-svn-id: svn://svn.chromium.org/blink/trunk@184727 bbb929c8-8fbe-4397-9dbb-9b2b20218538