Another warning as error fix for r9554



git-svn-id: http://skia.googlecode.com/svn/trunk@9557 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/gradient_matrix.cpp b/gm/gradient_matrix.cpp
index 25e052c..a0679bd 100644
--- a/gm/gradient_matrix.cpp
+++ b/gm/gradient_matrix.cpp
@@ -39,7 +39,7 @@
 
 static const SkPoint radialPts[][2] = {
     {{0,   0.5f}, {1,   0.5f}},
-    {{0.5, 0  }, {0.5, 1  }},
+    {{0.5f, 0  }, {0.5f, 1  }},
     {{1,   0.5f}, {0,   0.5f}},
     {{0.5f, 1  }, {0.5f, 0  }},