Run html5lib tests in Debug now that v8 boot is much faster

Jochen fixed v8 context boot:
https://code.google.com/p/v8/issues/detail?id=2567

So we shouldn't need to skip these tests anymore.

BUG=302733

Review URL: https://codereview.chromium.org/25504005

git-svn-id: svn://svn.chromium.org/blink/trunk@158671 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark acid3 as crashes in TextExpectations

TBR=abarth
BUG=301668

Review URL: https://codereview.chromium.org/25619004

git-svn-id: svn://svn.chromium.org/blink/trunk@158672 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Test for http://src.chromium.org/viewvc/blink?view=revision&revision=158550

This was promised as a followup to the crash fix.

BUG=301840

Review URL: https://codereview.chromium.org/25612002

git-svn-id: svn://svn.chromium.org/blink/trunk@158673 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove dead DiagnosticLoggingKeys.{h,cpp} from core/page/

R=eseidel

Review URL: https://codereview.chromium.org/25625002

git-svn-id: svn://svn.chromium.org/blink/trunk@158674 bbb929c8-8fbe-4397-9dbb-9b2b20218538