Mac: Decode hardware to 420 instead of 422

content/common/gpu/media/vt_video_decode_accelerator_mac.h

Index: content/common/gpu/media/vt_video_decode_accelerator_mac.h
diff --git a/content/common/gpu/media/vt_video_decode_accelerator_mac.h b/content/common/gpu/media/vt_video_decode_accelerator_mac.h
index 2d222163823e4e7cf603d444761741c4c131c059..c3e75e9e860b6fe2c562aa99fca9e61b6d1c4f6b 100644
--- a/content/common/gpu/media/vt_video_decode_accelerator_mac.h
+++ b/content/common/gpu/media/vt_video_decode_accelerator_mac.h
@@ -35,9 +35,8 @@ bool InitializeVideoToolbox();
 class VTVideoDecodeAccelerator : public media::VideoDecodeAccelerator {
  public:
   explicit VTVideoDecodeAccelerator(
-      const base::Callback<bool(void)>& make_context_current,
-      const base::Callback<
-          void(uint32_t, uint32_t, scoped_refptr<gl::GLImage>)>& bind_image);
+      const MakeContextCurrentCallback& make_context_current,
+      const BindImageCallback& bind_image);
   ~VTVideoDecodeAccelerator() override;
 
   // VideoDecodeAccelerator implementation.
@@ -189,9 +188,8 @@ class VTVideoDecodeAccelerator : public media::VideoDecodeAccelerator {
   //
   // GPU thread state.
   //
-  base::Callback<bool(void)> make_context_current_;
-  base::Callback<void(uint32_t, uint32_t, scoped_refptr<gl::GLImage>)>
-      bind_image_;
+  MakeContextCurrentCallback make_context_current_;
+  BindImageCallback bind_image_;
   media::VideoDecodeAccelerator::Client* client_;
   State state_;