Add half-float IOSurface GpuMemoryBuffer support

ui/gl/gl_image_io_surface_unittest.cc

 // Copyright 2015 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 <stddef.h>
 #include <stdint.h>
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/mac/io_surface.h"
@@ skipping 45 matching lines @@
     return image;
   }
 
   unsigned GetTextureTarget() const { return GL_TEXTURE_RECTANGLE_ARB; }
   const uint8_t* GetImageColor() { return kYuvImageColor; }
 };
 
 using GLImageTestTypes = testing::Types<
     GLImageIOSurfaceTestDelegate<gfx::BufferFormat::RGBA_8888>,
     GLImageIOSurfaceTestDelegate<gfx::BufferFormat::BGRA_8888>,
+    GLImageIOSurfaceTestDelegate<gfx::BufferFormat::RGBA_F16>,
     GLImageIOSurfaceTestDelegate<gfx::BufferFormat::YUV_420_BIPLANAR>>;
 
 INSTANTIATE_TYPED_TEST_CASE_P(GLImageIOSurface, GLImageTest, GLImageTestTypes);
 
 using GLImageRGBTestTypes =
     testing::Types<GLImageIOSurfaceTestDelegate<gfx::BufferFormat::RGBA_8888>,
-                   GLImageIOSurfaceTestDelegate<gfx::BufferFormat::BGRA_8888>>;
+                   GLImageIOSurfaceTestDelegate<gfx::BufferFormat::BGRA_8888>,
+                   GLImageIOSurfaceTestDelegate<gfx::BufferFormat::RGBA_F16>>;
 
 INSTANTIATE_TYPED_TEST_CASE_P(GLImageIOSurface,
                               GLImageZeroInitializeTest,
                               GLImageRGBTestTypes);
 
 INSTANTIATE_TYPED_TEST_CASE_P(
     GLImageIOSurface,
     GLImageBindTest,
     GLImageIOSurfaceTestDelegate<gfx::BufferFormat::BGRA_8888>);
 
 INSTANTIATE_TYPED_TEST_CASE_P(
     GLImageIOSurface,
     GLImageCopyTest,
     GLImageIOSurfaceTestDelegate<gfx::BufferFormat::YUV_420_BIPLANAR>);
 
 }  // namespace
 }  // namespace gl