Add trooper alerts for LKGR failures and lag.
Add trooper alerts for LKGR failures and lag.

R=ilevy@google.com
BUG=177917

Review URL: https://codereview.chromium.org/13004004

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@190806 0039d316-1c4b-4281-b951-d872f2087c98

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