GitLab

If the web-page specifies a color using the 'theme-color' meta-tag, then use
that color to paint the background of the window-title.

Fix the height of the title to be 25px.

BUG=401569
R=oshima@chromium.org

Review URL: https://codereview.chromium.org/455773003

Cr-Commit-Position: refs/heads/master@{#288420}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288420 0039d316-1c4b-4281-b951-d872f2087c98