Enable image is opaque test seems to pass now

tests/ImageIsOpaqueTest.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #include "Test.h"
 
@@ skipping 69 matching lines @@
         }
 
         SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
         SkAutoTUnref<SkSurface> surfaceTransparent(
             SkSurface::NewRenderTarget(context,SkSurface::kNo_Budgeted, infoTransparent));
         check_isopaque(reporter, surfaceTransparent, false);
 
         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
     }
 }
 
 #endif