Write mojom and StructTraits for display::GammaRampRGBEntry

ui/display/mojo/display_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 "testing/gtest/include/gtest/gtest.h"
 #include "ui/display/display.h"
 #include "ui/display/display_layout.h"
 #include "ui/display/mojo/display_struct_traits_test.mojom.h"
 #include "ui/display/types/display_mode.h"
+#include "ui/display/types/gamma_ramp_rgb_entry.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace display {
 namespace {
 
 constexpr int64_t kDisplayId1 = 123;
 constexpr int64_t kDisplayId2 = 456;
 constexpr int64_t kDisplayId3 = 789;
 
@@ skipping 23 matching lines @@
       const DisplayPlacement& in,
       const EchoDisplayPlacementCallback& callback) override {
     callback.Run(in);
   }
 
   void EchoDisplayLayout(std::unique_ptr<display::DisplayLayout> in,
                          const EchoDisplayLayoutCallback& callback) override {
     callback.Run(std::move(in));
   }
 
+  void EchoGammaRampRGBEntry(
+      const GammaRampRGBEntry& in,
+      const EchoGammaRampRGBEntryCallback& callback) override {
+    callback.Run(in);
+  }
+
   base::MessageLoop loop_;  // A MessageLoop is needed for Mojo IPC to work.
   mojo::BindingSet<mojom::DisplayStructTraitsTest> traits_test_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayStructTraitsTest);
 };
 
 void CheckDisplaysEqual(const Display& input, const Display& output) {
   EXPECT_NE(&input, &output);  // Make sure they aren't the same object.
   EXPECT_EQ(input.id(), output.id());
   EXPECT_EQ(input.bounds(), output.bounds());
@@ skipping 147 matching lines @@
   input->primary_id = kDisplayId2;
   input->mirrored = true;
   input->default_unified = true;
 
   std::unique_ptr<DisplayLayout> output;
   GetTraitsTestProxy()->EchoDisplayLayout(input->Copy(), &output);
 
   CheckDisplayLayoutsEqual(*input, *output);
 }
 
+TEST_F(DisplayStructTraitsTest, BasicGammaRampRGBEntry) {
+  const GammaRampRGBEntry input{259, 81, 16};
+
+  GammaRampRGBEntry output;
+  GetTraitsTestProxy()->EchoGammaRampRGBEntry(input, &output);
+
+  EXPECT_EQ(input.r, output.r);
+  EXPECT_EQ(input.g, output.g);
+  EXPECT_EQ(input.b, output.b);
+}
+
 }  // namespace display