Add SSE4 check to BlurImage optimization.

Adds a build-time SSE4 check to SkBlurImage_opts_SSE2.cpp
in the SkBoxBlur_SSE2 function.

Signed-off-by: Henrik Smiding <henrik.smiding@intel.com>

R=reed@google.com, mtklein@google.com, tomhudson@google.com, djsollen@google.com, joakim.landberg@intel.com, senorblanco@chromium.org

Author: henrik.smiding@intel.com

Review URL: https://codereview.chromium.org/281963002

git-svn-id: http://skia.googlecode.com/svn/trunk@14750 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed