Implement ui/gfx/geometry StructTraits unit tests

ui/gfx/mojo/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/gfx/mojo/traits_test_service.mojom.h"
 #include "ui/gfx/transform.h"
 
@@ skipping 12 matching lines @@
 
  private:
   // TraitsTestService:
   void EchoTransform(const Transform& t,
                      const EchoTransformCallback& callback) override {
     callback.Run(t);
   }
 
   base::MessageLoop loop_;
   mojo::BindingSet<TraitsTestService> traits_test_bindings_;
+
+  DISALLOW_COPY_AND_ASSIGN(StructTraitsTest);
 };
 
 }  // namespace
 
 TEST_F(StructTraitsTest, Transform) {
   const float col1row1 = 1.f;
   const float col2row1 = 2.f;
   const float col3row1 = 3.f;
   const float col4row1 = 4.f;
   const float col1row2 = 5.f;
@@ skipping 27 matching lines @@
   EXPECT_EQ(col2row3, output.matrix().get(2, 1));
   EXPECT_EQ(col3row3, output.matrix().get(2, 2));
   EXPECT_EQ(col4row3, output.matrix().get(2, 3));
   EXPECT_EQ(col1row4, output.matrix().get(3, 0));
   EXPECT_EQ(col2row4, output.matrix().get(3, 1));
   EXPECT_EQ(col3row4, output.matrix().get(3, 2));
   EXPECT_EQ(col4row4, output.matrix().get(3, 3));
 }
 
 }  // namespace gfx