Add basic SkBitmap StructTraitsTest.

skia/public/interfaces/test/struct_traits_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop/message_loop.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "skia/public/interfaces/test/traits_test_service.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkColorFilter.h"
 #include "third_party/skia/include/core/SkString.h"
 #include "third_party/skia/include/effects/SkColorFilterImageFilter.h"
+#include "ui/gfx/skia_util.h"
 
 namespace skia {
 
 namespace {
 
 class StructTraitsTest : public testing::Test, public mojom::TraitsTestService {
  public:
   StructTraitsTest() {}
 
  protected:
   mojom::TraitsTestServicePtr GetTraitsTestProxy() {
     return traits_test_bindings_.CreateInterfacePtrAndBind(this);
   }
 
  private:
   // TraitsTestService:
+  void EchoBitmap(const SkBitmap& b,
+                  const EchoBitmapCallback& callback) override {
+    callback.Run(b);
+  }
   void EchoImageFilter(const sk_sp<SkImageFilter>& i,
                        const EchoImageFilterCallback& callback) override {
     callback.Run(i);
   }
 
   base::MessageLoop loop_;
   mojo::BindingSet<TraitsTestService> traits_test_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(StructTraitsTest);
 };
 
 static sk_sp<SkImageFilter> make_scale(float amount,
                                        sk_sp<SkImageFilter> input) {
   SkScalar s = amount;
   SkScalar matrix[20] = {s, 0, 0, 0, 0, 0, s, 0, 0, 0,
                          0, 0, s, 0, 0, 0, 0, 0, s, 0};
   sk_sp<SkColorFilter> filter(
       SkColorFilter::MakeMatrixFilterRowMajor255(matrix));
   return SkColorFilterImageFilter::Make(std::move(filter), std::move(input));
 }
 
 }  // namespace
 
+TEST_F(StructTraitsTest, Bitmap) {
+  SkBitmap input;
+  input.allocN32Pixels(10, 5);
+  input.eraseColor(SK_ColorYELLOW);
+  input.erase(SK_ColorTRANSPARENT, SkIRect::MakeXYWH(0, 1, 2, 3));
+  mojom::TraitsTestServicePtr proxy = GetTraitsTestProxy();
+  SkBitmap output;
+  proxy->EchoBitmap(input, &output);
+  EXPECT_EQ(input.colorType(), output.colorType());
+  EXPECT_EQ(input.alphaType(), output.alphaType());
+  EXPECT_EQ(input.profileType(), output.profileType());
+  EXPECT_EQ(input.width(), output.width());
+  EXPECT_EQ(input.height(), output.height());
+  EXPECT_TRUE(gfx::BitmapsAreEqual(input, output));
+}
+
 TEST_F(StructTraitsTest, ImageFilter) {
   sk_sp<SkImageFilter> input(make_scale(0.5f, nullptr));
   SkString input_str;
   input->toString(&input_str);
   mojom::TraitsTestServicePtr proxy = GetTraitsTestProxy();
   sk_sp<SkImageFilter> output;
   proxy->EchoImageFilter(input, &output);
   SkString output_str;
   output->toString(&output_str);
   EXPECT_EQ(input_str, output_str);
 }
 
 }  // namespace skia