Add config options to run different GPU APIs to dm and nanobench

src/gpu/gl/angle/SkANGLEGLContext.cpp

Index: src/gpu/gl/angle/SkANGLEGLContext.cpp
diff --git a/src/gpu/gl/angle/SkANGLEGLContext.cpp b/src/gpu/gl/angle/SkANGLEGLContext.cpp
index 54ef02d492468864f82ee60e89eba16120dabbe9..05bee0526b4d38b458743629675c3f6ec0a01cad 100644
--- a/src/gpu/gl/angle/SkANGLEGLContext.cpp
+++ b/src/gpu/gl/angle/SkANGLEGLContext.cpp
@@ -180,7 +180,7 @@ GrGLuint SkANGLEGLContext::eglImageToExternalTexture(GrEGLImage image) const {
 }
 
 SkGLContext* SkANGLEGLContext::createNew() const {
-    SkGLContext* ctx = SkANGLEGLContext::Create(this->gl()->fStandard, fIsGLBackend);
+    SkGLContext* ctx = SkANGLEGLContext::Create(fIsGLBackend);
     if (ctx) {
         ctx->makeCurrent();
     }