Reland "Add create backend texture with color upload bench."

This reverts commit 1ff415d.

Reason for revert: relanding with fix

Original change's description:
> Revert "Add create backend texture with color upload bench."
> 
> This reverts commit 690b4c4.
> 
> Reason for revert: breaking bots
> 
> Original change's description:
> > Add create backend texture with color upload bench.
> > 
> > Change-Id: Id4994cb809d6e19ca511b63dba71b45257eca927
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/287618
> > Commit-Queue: Greg Daniel <[email protected]>
> > Reviewed-by: Robert Phillips <[email protected]>
> 
> [email protected],[email protected]
> 
> Change-Id: I2ac38977abc0004b38a94dacf0a235ae4fbac5d3
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/287636
> Reviewed-by: Greg Daniel <[email protected]>
> Commit-Queue: Greg Daniel <[email protected]>

[email protected],[email protected]

Change-Id: I287a1d829d4d861d149b0f1d9adf556a38e44abb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/287638
Reviewed-by: Greg Daniel <[email protected]>
Reviewed-by: Robert Phillips <[email protected]>
Commit-Queue: Greg Daniel <[email protected]>

Author: egdaniel

bench/CreateBackendTextureBench.cpp

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "bench/Benchmark.h"
+#include "include/core/SkCanvas.h"
+#include "include/gpu/GrContext.h"
+
+class CreateBackendTextureBench : public Benchmark {
+private:
+    SkString fName;
+    SkTArray<GrBackendTexture> fBackendTextures;
+    GrMipMapped fMipMapped;
+
+public:
+    CreateBackendTextureBench(GrMipMapped mipMapped) : fMipMapped(mipMapped) {
+        fName.printf("create_backend_texture%s", mipMapped == GrMipMapped::kYes ? "_mipped" : "");
+    }
+
+private:
+    bool isSuitableFor(Backend backend) override { return kGPU_Backend == backend; }
+
+    const char* onGetName() override { return fName.c_str(); }
+
+    void onDraw(int loops, SkCanvas* canvas) override {
+        GrContext* context = canvas->getGrContext();
+
+        fBackendTextures.reserve(loops);
+
+        static const int kSize = 16;
+        for (int i = 0; i < loops; ++i) {
+            fBackendTextures.push_back(context->createBackendTexture(
+                    kSize, kSize, kRGBA_8888_SkColorType, SkColors::kRed, fMipMapped,
+                    GrRenderable::kNo, GrProtected::kNo));
+        }
+    }
+
+    void onPerCanvasPostDraw(SkCanvas* canvas) override {
+        GrContext* context = canvas->getGrContext();
+
+        GrFlushInfo info;
+        info.fFlags = kSyncCpu_GrFlushFlag;
+        context->flush(info);
+
+        for (int i = 0; i < fBackendTextures.count(); ++i) {
+            if (fBackendTextures[i].isValid()) {
+                context->deleteBackendTexture(fBackendTextures[i]);
+            }
+        }
+        fBackendTextures.reset();
+    }
+};
+
+DEF_BENCH(return new CreateBackendTextureBench(GrMipMapped::kNo);)
+DEF_BENCH(return new CreateBackendTextureBench(GrMipMapped::kYes);)

gn/bench.gni

@@ -37,6 +37,7 @@ bench_sources = [
   "$_bench/CompositingImagesBench.cpp",
   "$_bench/ControlBench.cpp",
   "$_bench/CoverageBench.cpp",
+  "$_bench/CreateBackendTextureBench.cpp",
   "$_bench/CubicKLMBench.cpp",
   "$_bench/CubicMapBench.cpp",
   "$_bench/DDLRecorderBench.cpp",