Commit f420c42442136e63c8c475446e01da1f6bcf5d32

zmo@google.com 2011-09-12T18:27:59

Add/remove more functions to use shims. Remove normalize and add cos instead to avoid a crash in Mac with ATI cards (angle bug 193, 202). Also add atan and mod as it's also buggy on Mac/Win with NVIDIA cards. Also, trying to minimize emulated functions by adding masks for fragment/vertex shaders. ANGLEBUG=196 Review URL: http://codereview.appspot.com/4992047 git-svn-id: https://angleproject.googlecode.com/svn/trunk@748 736b8ea6-26fd-11df-bfd4-992fa37f6226