Revert "remove unneeded SK_SUPPORT_LEGACY_BLURMASKFILTER_STYLE"

This reverts commit 95b03ce59986ecee5e4188da630a563efca3afe8.

NOTRY=True
TBR=fmalita@google.com

Author: reed@chromium.org

Review URL: https://codereview.chromium.org/274513002

git-svn-id: http://skia.googlecode.com/svn/trunk@14606 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed