Re-enable VTConfigUtil tests for BT.2020 HDR on 10.10

These should expect BT.709 when the proper color spaces are not
supported by the OS version.

R=sandersd

Fixed: 1113153
Change-Id: I86805fc80904236d5051ece61ce6612e3b64e74d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2339538
Auto-Submit: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#795310}

media/gpu/mac/vt_config_util_unittest.cc

@@ -268,24 +268,36 @@ TEST(VTConfigUtil, GetImageBufferColorSpace_GAMMA28) {
   EXPECT_EQ(cs.ToGfxColorSpace(), GetImageBufferColorSpace(image_buffer));
 }
 
-TEST(VTConfigUtil, DISABLED_GetImageBufferColorSpace_BT2020_PQ) {
+TEST(VTConfigUtil, GetImageBufferColorSpace_BT2020_PQ) {
   auto cs = VideoColorSpace(VideoColorSpace::PrimaryID::BT2020,
                             VideoColorSpace::TransferID::SMPTEST2084,
                             VideoColorSpace::MatrixID::BT2020_NCL,
                             gfx::ColorSpace::RangeID::LIMITED);
   auto image_buffer = CreateCVImageBuffer(cs);
   ASSERT_TRUE(image_buffer);
-  EXPECT_EQ(cs.ToGfxColorSpace(), GetImageBufferColorSpace(image_buffer));
+  auto image_buffer_cs = GetImageBufferColorSpace(image_buffer);
+
+  // When BT.2020 is unavailable the default should be BT.709.
+  if (__builtin_available(macos 10.13, *))
+    EXPECT_EQ(cs.ToGfxColorSpace(), image_buffer_cs);
+  else
+    EXPECT_EQ(gfx::ColorSpace::CreateREC709(), image_buffer_cs);
 }
 
-TEST(VTConfigUtil, DISABLED_GetImageBufferColorSpace_BT2020_HLG) {
+TEST(VTConfigUtil, GetImageBufferColorSpace_BT2020_HLG) {
   auto cs = VideoColorSpace(VideoColorSpace::PrimaryID::BT2020,
                             VideoColorSpace::TransferID::ARIB_STD_B67,
                             VideoColorSpace::MatrixID::BT2020_NCL,
                             gfx::ColorSpace::RangeID::LIMITED);
   auto image_buffer = CreateCVImageBuffer(cs);
   ASSERT_TRUE(image_buffer);
-  EXPECT_EQ(cs.ToGfxColorSpace(), GetImageBufferColorSpace(image_buffer));
+  auto image_buffer_cs = GetImageBufferColorSpace(image_buffer);
+
+  // When BT.2020 is unavailable the default should be BT.709.
+  if (__builtin_available(macos 10.13, *))
+    EXPECT_EQ(cs.ToGfxColorSpace(), image_buffer_cs);
+  else
+    EXPECT_EQ(gfx::ColorSpace::CreateREC709(), image_buffer_cs);
 }
 
 }  // namespace media