[libvpx] Use HighBD config for ARM64 Mac

Also adds unit tests to cover HighBD support on various platforms.

Bug: 1128445
Change-Id: I9951a49f0fca311f48ff55c1618f3d18343dfca8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427556
Commit-Queue: Xiaohan Wang <xhwang@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: James Zern <jzern@google.com>
Cr-Commit-Position: refs/heads/master@{#810904}

media/base/supported_types_unittest.cc

@@ -156,6 +156,28 @@ TEST(SupportedTypesTest, IsSupportedVideoType_VP9Matrix) {
   EXPECT_EQ(kSupportedMatrix.size(), num_found);
 }
 
+TEST(SupportedTypesTest, IsSupportedVideoType_VP9Profiles) {
+  // Default to common 709.
+  const VideoColorSpace kColorSpace = VideoColorSpace::REC709();
+
+  // Some codecs do not have a notion of level.
+  const int kUnspecifiedLevel = 0;
+
+  EXPECT_TRUE(IsSupportedVideoType(
+      {kCodecVP9, VP9PROFILE_PROFILE0, kUnspecifiedLevel, kColorSpace}));
+  EXPECT_TRUE(IsSupportedVideoType(
+      {kCodecVP9, VP9PROFILE_PROFILE1, kUnspecifiedLevel, kColorSpace}));
+
+// VP9 Profile2 are supported on x86, ChromeOS on ARM and Mac/Win on ARM64.
+// See third_party/libvpx/BUILD.gn.
+#if defined(ARCH_CPU_X86_FAMILY) ||                           \
+    (defined(ARCH_CPU_ARM_FAMILY) && defined(OS_CHROMEOS)) || \
+    (defined(ARCH_CPU_ARM64) && (defined(OS_MAC) || defined(OS_WIN)))
+  EXPECT_TRUE(IsSupportedVideoType(
+      {kCodecVP9, VP9PROFILE_PROFILE2, kUnspecifiedLevel, kColorSpace}));
+#endif
+}
+
 TEST(SupportedTypesTest, IsSupportedAudioTypeWithSpatialRenderingBasics) {
   const bool is_spatial_rendering = true;
   // Dolby Atmos = E-AC3 (Dolby Digital Plus) + spatialRendering. Currently not

third_party/libvpx/BUILD.gn

@@ -331,7 +331,7 @@ static_library("libvpx") {
       sources = libvpx_srcs_arm
     }
   } else if (current_cpu == "arm64") {
-    if (is_chromeos || is_win) {
+    if (is_chromeos || is_win || is_mac) {
       sources = libvpx_srcs_arm64_highbd
     } else {
       sources = libvpx_srcs_arm64

third_party/libvpx/generate_gni.sh

@@ -490,7 +490,7 @@ if [ -z $ONLY_CONFIGS ]; then
   make libvpx_srcs.txt target=libs $config > /dev/null
   convert_srcs_to_project_files libvpx_srcs.txt libvpx_srcs_arm64_highbd
 
-  echo "ARM64 Windows uses the ARM64 Linux HighBD source list. No need to generate it."
+  echo "ARM64 Windows and Mac use the ARM64 Linux HighBD source list. No need to generate it."
 
   echo "Generate MIPS source list."
   config=$(print_config_basic linux/mipsel)