Fix for effect cache key.

Adds the additional shift needed to incorporate the attribKeyBits.  Also simplifies the creation of the static globals for the edge effects.

Author: jvanverth@google.com

Reviewed By: bsalomon@google.com

Review URL: https://chromiumcodereview.appspot.com/13465019

git-svn-id: http://skia.googlecode.com/svn/trunk@8498 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed