Provide StructTraits for a vector<SkBitmap>

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"
@@ skipping 14 matching lines @@
     return traits_test_bindings_.CreateInterfacePtrAndBind(this);
   }
 
  private:
   // TraitsTestService:
   void EchoBitmap(const SkBitmap& b,
                   const EchoBitmapCallback& callback) override {
     callback.Run(b);
   }
 
+  void EchoBitmapArray(const std::vector<SkBitmap>& t,
+                     const EchoBitmapArrayCallback& callback) override {
+    callback.Run(t);
+  }
+
   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);
 };
@@ skipping 46 matching lines @@
   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);
 }
 
+TEST_F(StructTraitsTest, BitmapArray) {
+  SkBitmap b1, b2;
+
+  SkImageInfo image_info1 = SkImageInfo::MakeN32(10, 5, kPremul_SkAlphaType);
+  b1.allocPixels(image_info1);
+
+  SkImageInfo image_info2 = SkImageInfo::MakeN32(11, 6, kPremul_SkAlphaType);
+  b2.allocPixels(image_info2);
+
+  std::vector<SkBitmap> vi;
+  vi.push_back(b1);
+  vi.push_back(b2);
+
+  mojom::TraitsTestServicePtr proxy = GetTraitsTestProxy();
+  std::vector<SkBitmap> vo;
+  proxy->EchoBitmapArray(vi, &vo);
+
+  EXPECT_EQ(vi.size(), vo.size());
+  for (size_t  i = 0; i < vi.size(); i++) {
+    EXPECT_EQ(vi[i].width(), vo[i].width());
+    EXPECT_EQ(vi[i].height(), vo[i].height());
+  }
+}
+
 }  // namespace skia