GTTF: Add HTML generation option to lkgr_finder.
GTTF: Add HTML generation option to lkgr_finder.

This makes it much easier to see what makes LKGR stale.

BUG=177922
Review URL: https://codereview.chromium.org/12995007

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@192095 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build