GitLab

Capitalize column headers and buttons as appropriate for the platform.

BUG=none
TEST=Private Memory, Shared Memory, JavaScript cache, End process, etc. should have consistent capitalization


Review URL: http://codereview.chromium.org/8711001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112947 0039d316-1c4b-4281-b951-d872f2087c98