Increase bits for effect attribute key. 

We can have an attribute index value up to 7, but only allow 2 bits for each
index in GrGLEffect::GenAttribKey. This change gives them 3 bits (and fixes an
assert when running tests in debug).

Review URL: https://codereview.chromium.org/12431018/


git-svn-id: http://skia.googlecode.com/svn/trunk@8140 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed