media/gpu/GenericDmabufVFMapper: Support to map ABGR and XBGR formats

This enable GenericDmabufVFMapper to map ABGR and XBGR formats.

Bug: 944822
Test: image_processor_test
Change-Id: I19f6556c16a13104322c022a0179ca249a5d11f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1611065Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659401}

media/gpu/format_utils.cc

@@ -52,6 +52,12 @@ gfx::BufferFormat VideoPixelFormatToGfxBufferFormat(
     case PIXEL_FORMAT_NV12:
       return gfx::BufferFormat::YUV_420_BIPLANAR;
 
+    case PIXEL_FORMAT_ABGR:
+      return gfx::BufferFormat::RGBA_8888;
+
+    case PIXEL_FORMAT_XBGR:
+      return gfx::BufferFormat::RGBX_8888;
+
     default:
       LOG(FATAL) << "Unsupported VideoPixelFormat: " << pixel_format;
       return gfx::BufferFormat::BGRX_8888;

media/gpu/linux/generic_dmabuf_video_frame_mapper.cc

@@ -81,7 +81,12 @@ scoped_refptr<VideoFrame> CreateMappedVideoFrame(
 
 bool IsFormatSupported(VideoPixelFormat format) {
   constexpr VideoPixelFormat supported_formats[] = {
+      // RGB pixel formats.
+      PIXEL_FORMAT_ABGR,
       PIXEL_FORMAT_ARGB,
+      PIXEL_FORMAT_XBGR,
+
+      // YUV pixel formats.
       PIXEL_FORMAT_I420,
       PIXEL_FORMAT_NV12,
       PIXEL_FORMAT_YV12,