shape ops work in progress

at least 12M of the quad/quad intersection tests pass

git-svn-id: http://skia.googlecode.com/svn/trunk@5591 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/LineParameters.h b/experimental/Intersection/LineParameters.h
index d4d7419..fc1bcc8 100644
--- a/experimental/Intersection/LineParameters.h
+++ b/experimental/Intersection/LineParameters.h
@@ -53,7 +53,7 @@
 
     bool normalize() {
         double normal = sqrt(normalSquared());
-        if (approximately_zero_squared(normal)) {
+        if (approximately_zero(normal)) {
             a = b = c = 0;
             return false;
         }