Using robust equality check.

Change-Id: Ie30684c472bfa38d0432f855f7075c34709958d5
diff --git a/core/java/android/text/Layout.java b/core/java/android/text/Layout.java
index 4e197cd..b62aa40 100755
--- a/core/java/android/text/Layout.java
+++ b/core/java/android/text/Layout.java
@@ -1154,7 +1154,7 @@
         if (h2 < 0.5f)
             h2 = 0.5f;
 
-        if (h1 == h2) {
+        if (Float.compare(h1, h2) == 0) {
             dest.moveTo(h1, top);
             dest.lineTo(h1, bottom);
         } else {