Clean up EGL thread state at thread exit in nanobench and DM

src/gpu/GrContextFactory.h

Index: src/gpu/GrContextFactory.h
diff --git a/src/gpu/GrContextFactory.h b/src/gpu/GrContextFactory.h
index 7afa3108c69d8984e0d63cd76350570dc764d4be..08f3b64462b3dbe7760ae7ecb03e7e41028c8f40 100644
--- a/src/gpu/GrContextFactory.h
+++ b/src/gpu/GrContextFactory.h
@@ -130,6 +130,7 @@ public:
     }
     const GrContextOptions& getGlobalOptions() const { return fGlobalOptions; }
 
+    static void ReleaseGpuAPIsInThread();
 private:
     struct Context {
         GLContextType fType;