flag to make kClipToLayer_SaveFlag the default behavior

#define SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG to get the old behavior

The goal is to remove the feature of saveLayer that allows the canvas to draw outside of the top-most layer.

R=robertphillips@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/190723004

git-svn-id: http://skia.googlecode.com/svn/trunk@13730 2bbb7eff-a529-9590-31e7-b0007b416f81
5 files changed