components/arc: Create mojo enum for media::DecodeStatus.

BUG=b:136716638
TEST=components_unittests

Change-Id: I6d62a63b06869aad9ee08a6786da8a701ba15122
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1697501
Commit-Queue: Chih-Yu Huang <akahuang@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678970}

components/arc/common/video_accelerator_struct_traits.cc

@@ -170,6 +170,48 @@ bool EnumTraits<arc::mojom::VideoPixelFormat, media::VideoPixelFormat>::
   return false;
 }
 
+// Make sure values in arc::mojom::DecodeStatus match to the values in
+// media::DecodeStatus.
+#define CHECK_DECODE_STATUS_ENUM(value)                              \
+  static_assert(static_cast<int>(arc::mojom::DecodeStatus::value) == \
+                    static_cast<int>(media::DecodeStatus::value),    \
+                "enum ##value mismatch")
+
+CHECK_DECODE_STATUS_ENUM(OK);
+CHECK_DECODE_STATUS_ENUM(ABORTED);
+CHECK_DECODE_STATUS_ENUM(DECODE_ERROR);
+
+#undef CHECK_DECODE_STATUS_ENUM
+
+// static
+arc::mojom::DecodeStatus
+EnumTraits<arc::mojom::DecodeStatus, media::DecodeStatus>::ToMojom(
+    media::DecodeStatus input) {
+  switch (input) {
+    case media::DecodeStatus::OK:
+    case media::DecodeStatus::ABORTED:
+    case media::DecodeStatus::DECODE_ERROR:
+      return static_cast<arc::mojom::DecodeStatus>(input);
+  }
+  NOTREACHED() << "unknown status: " << static_cast<int>(input);
+  return arc::mojom::DecodeStatus::DECODE_ERROR;
+}
+
+// static
+bool EnumTraits<arc::mojom::DecodeStatus, media::DecodeStatus>::FromMojom(
+    arc::mojom::DecodeStatus input,
+    media::DecodeStatus* output) {
+  switch (input) {
+    case arc::mojom::DecodeStatus::OK:
+    case arc::mojom::DecodeStatus::ABORTED:
+    case arc::mojom::DecodeStatus::DECODE_ERROR:
+      *output = static_cast<media::DecodeStatus>(input);
+      return true;
+  }
+  NOTREACHED() << "unknown status: " << static_cast<int>(input);
+  return false;
+}
+
 // static
 bool StructTraits<arc::mojom::VideoFramePlaneDataView, arc::VideoFramePlane>::
     Read(arc::mojom::VideoFramePlaneDataView data, arc::VideoFramePlane* out) {

components/arc/common/video_accelerator_struct_traits.h

@@ -9,6 +9,7 @@
 
 #include "components/arc/common/video_common.mojom.h"
 #include "components/arc/video_accelerator/video_frame_plane.h"
+#include "media/base/decode_status.h"
 #include "media/base/video_codecs.h"
 #include "media/base/video_frame_layout.h"
 #include "media/base/video_types.h"
@@ -136,6 +137,14 @@ struct StructTraits<arc::mojom::VideoFrameLayoutDataView,
                    std::unique_ptr<media::VideoFrameLayout>* out);
 };
 
+template <>
+struct EnumTraits<arc::mojom::DecodeStatus, media::DecodeStatus> {
+  static arc::mojom::DecodeStatus ToMojom(media::DecodeStatus input);
+
+  static bool FromMojom(arc::mojom::DecodeStatus input,
+                        media::DecodeStatus* output);
+};
+
 }  // namespace mojo
 
 #endif  // COMPONENTS_ARC_COMMON_VIDEO_ACCELERATOR_STRUCT_TRAITS_H_

components/arc/common/video_common.mojom

@@ -81,6 +81,14 @@ enum VideoPixelFormat {
   [MinVersion=2] PIXEL_FORMAT_XBGR = 28,
 };
 
+[Extensible]
+enum DecodeStatus {
+  // The values must match to the values in media::DecodeStatus
+  OK = 0,
+  ABORTED = 1,
+  DECODE_ERROR = 2,
+};
+
 // The offset and stride of a video frame plane. Both offset and stride must
 // be non negative.
 struct VideoFramePlane {

components/arc/common/video_common.typemap

@@ -5,6 +5,7 @@
 mojom = "//components/arc/common/video_common.mojom"
 public_headers = [
   "//components/arc/video_accelerator/video_frame_plane.h",
+  "//media/base/decode_status.h",
   "//media/base/video_codecs.h",
   "//media/base/video_frame_layout.h",
   "//media/base/video_types.h",
@@ -27,6 +28,7 @@ deps = [
 ]
 
 type_mappings = [
+  "arc.mojom.DecodeStatus=media::DecodeStatus",
   "arc.mojom.MediaVideoFramePlane=media::VideoFrameLayout::Plane",
   "arc.mojom.Size=gfx::Size",
   "arc.mojom.VideoCodecProfile=media::VideoCodecProfile",