remove SK_SUPPORT_LEGACY_ONLOCKPIXELS completely -- no longer supported

BUG=

Review URL: https://codereview.chromium.org/147723004

git-svn-id: svn://svn.chromium.org/blink/trunk@166844 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Persistent variants of the GC collection types.

R=haraken@chromium.org, wibling@chromium.org
BUG=

Review URL: https://codereview.chromium.org/150013006

git-svn-id: svn://svn.chromium.org/blink/trunk@166845 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Prevent checkbox shrinking.

BUG=342326

Review URL: https://codereview.chromium.org/144463010

git-svn-id: svn://svn.chromium.org/blink/trunk@166846 bbb929c8-8fbe-4397-9dbb-9b2b20218538