DevTools: [Console] refactor ConsoleView and ConsoleGroup classes

This patch cleans up ConsoleView and ConsoleGroup classes to remove some legacy code. No change in behavior.

Review URL: https://codereview.chromium.org/241093002

git-svn-id: svn://svn.chromium.org/blink/trunk@171875 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Windows rebaselines for ahem tests in virtual DirectWrite suite

New windows results for the virtual DirectWrite test suite now that
the Ahem font is supported for DW.

TBR=dglazkov@chromium.org
BUG=

Review URL: https://codereview.chromium.org/241233002

git-svn-id: svn://svn.chromium.org/blink/trunk@171876 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Re-enable PrefixedVideoFullscreen

This feature is deprecated and we'd like to remove it, but there are still some
web sites that are using it. This CL re-enables the feature while we evangalize
those sites.

BUG=346236

Review URL: https://codereview.chromium.org/240373006

git-svn-id: svn://svn.chromium.org/blink/trunk@171877 bbb929c8-8fbe-4397-9dbb-9b2b20218538