Adding API to GrTexture to reset cached texture parameter values

REVIEW=http://codereview.appspot.com/6305084/
BUG=http://code.google.com/p/chromium/issues/detail?id=130925



git-svn-id: http://skia.googlecode.com/svn/trunk@4234 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed