remove sizeof check -- triggers warning in chrome

git-svn-id: http://skia.googlecode.com/svn/trunk@14269 2bbb7eff-a529-9590-31e7-b0007b416f81
Sanitizing source files in Housekeeper-Nightly

git-svn-id: http://skia.googlecode.com/svn/trunk@14270 2bbb7eff-a529-9590-31e7-b0007b416f81