reland 5926 w/ fix in middle loop (thank you asserts)



git-svn-id: http://skia.googlecode.com/svn/trunk@5928 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkBitmapProcState.h b/src/core/SkBitmapProcState.h
index 4e3a1a1..d9ac5c7 100644
--- a/src/core/SkBitmapProcState.h
+++ b/src/core/SkBitmapProcState.h
@@ -137,6 +137,7 @@
 
     MatrixProc chooseMatrixProc(bool trivial_matrix);
     bool chooseProcs(const SkMatrix& inv, const SkPaint&);
+    ShaderProc32 chooseShaderProc32();
 
 #ifdef SK_DEBUG
     static void DebugMatrixProc(const SkBitmapProcState&,