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

bench/nanobench.cpp

Index: bench/nanobench.cpp
diff --git a/bench/nanobench.cpp b/bench/nanobench.cpp
index 0e231e711068e317b7c2da13de95ee07aa65d5b7..10cb8de63fde65e8755d4471868b96e1750da495 100644
--- a/bench/nanobench.cpp
+++ b/bench/nanobench.cpp
@@ -31,6 +31,7 @@
 #include "SkCanvas.h"
 #include "SkCodec.h"
 #include "SkCommonFlags.h"
+#include "SkCommonFlagsConfig.h"
 #include "SkData.h"
 #include "SkForceLinking.h"
 #include "SkGraphics.h"
@@ -170,11 +171,10 @@ struct GPUTarget : public Target {
                                                   0;
         SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
         this->surface.reset(SkSurface::NewRenderTarget(gGrFactory->get(this->config.ctxType,
-                                                                       kNone_GrGLStandard,
                                                                        this->config.ctxOptions),
                                                          SkSurface::kNo_Budgeted, info,
                                                          this->config.samples, &props));
-        this->gl = gGrFactory->getContextInfo(this->config.ctxType, kNone_GrGLStandard,
+        this->gl = gGrFactory->getContextInfo(this->config.ctxType,
                                               this->config.ctxOptions)->fGLContext;
         if (!this->surface.get()) {
             return false;
@@ -392,7 +392,7 @@ static bool is_gpu_config_allowed(const char* name, GrContextFactory::GLContextT
     if (!is_cpu_config_allowed(name)) {
         return false;
     }
-    if (const GrContext* ctx = gGrFactory->get(ctxType, kNone_GrGLStandard, ctxOptions)) {
+    if (const GrContext* ctx = gGrFactory->get(ctxType, ctxOptions)) {
         return sampleCnt <= ctx->caps()->maxSampleCount();
     }
     return false;
@@ -1254,7 +1254,7 @@ int nanobench_main() {
             if (FLAGS_gpuStats &&
                 Benchmark::kGPU_Backend == configs[i].backend) {
                 GrContext* context = gGrFactory->get(configs[i].ctxType,
-                                                     kNone_GrGLStandard, configs[i].ctxOptions);
+                                                     configs[i].ctxOptions);
                 context->printCacheStats();
                 context->printGpuStats();
             }