Support using OpenGL ES context on desktop

dm/DMBenchTask.h

Index: dm/DMBenchTask.h
diff --git a/dm/DMBenchTask.h b/dm/DMBenchTask.h
index ac7030b5f01feace3adcf0eb191aa958d420ac7d..84cd274b028c31d26d80e513880930e7d8fdb934 100644
--- a/dm/DMBenchTask.h
+++ b/dm/DMBenchTask.h
@@ -46,6 +46,7 @@ public:
                  TaskRunner*,
                  BenchRegistry::Factory,
                  GrContextFactory::GLContextType,
+                 GrGLStandard forcedGpuApi,
                  int sampleCount);
 
     virtual void draw(GrContextFactory*) SK_OVERRIDE;
@@ -56,6 +57,7 @@ private:
     SkAutoTDelete<SkBenchmark> fBench;
     const SkString fName;
     const GrContextFactory::GLContextType fContextType;
+    const GrGLStandard fForcedGpuApi;
     int fSampleCount;
 };