Enable image is opaque test seems to pass now

tests/ImageIsOpaqueTest.cpp

Index: tests/ImageIsOpaqueTest.cpp
diff --git a/tests/ImageIsOpaqueTest.cpp b/tests/ImageIsOpaqueTest.cpp
index 3718cf16cc92c7fe578ffc5ce6f2255052cc797b..48ac9f94bb0bcd54c4cd6fe633e9b014fe87e974 100644
--- a/tests/ImageIsOpaqueTest.cpp
+++ b/tests/ImageIsOpaqueTest.cpp
@@ -87,10 +87,8 @@ DEF_GPUTEST(ImageIsOpaqueTest_GPU, reporter, factory) {
         SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
         SkAutoTUnref<SkSurface> surfaceOpaque(
             SkSurface::NewRenderTarget(context,SkSurface::kNo_Budgeted, infoOpaque));
-#if 0
-        // this is failing right now : TODO fix me
+
         check_isopaque(reporter, surfaceOpaque, true);
-#endif
     }
 }