media: Introduce Y8 and Y16 video pixel format

media/base/video_frame.cc

Index: media/base/video_frame.cc
diff --git a/media/base/video_frame.cc b/media/base/video_frame.cc
index 2de6bd36d5cdffb60956aa515a3824671db29b7d..38a6438b5972c16c057e11ea72e017746bb28c88 100644
--- a/media/base/video_frame.cc
+++ b/media/base/video_frame.cc
@@ -125,7 +125,7 @@ bool VideoFrame::IsValidConfig(VideoPixelFormat format,
     return true;
 
   // Make sure new formats are properly accounted for in the method.
-  static_assert(PIXEL_FORMAT_MAX == 21,
+  static_assert(PIXEL_FORMAT_MAX == 23,
                 "Added pixel format, please review IsValidConfig()");
 
   if (format == PIXEL_FORMAT_UNKNOWN) {
@@ -535,6 +535,8 @@ size_t VideoFrame::NumPlanes(VideoPixelFormat format) {
     case PIXEL_FORMAT_RGB24:
     case PIXEL_FORMAT_RGB32:
     case PIXEL_FORMAT_MJPEG:
+    case PIXEL_FORMAT_Y8:
+    case PIXEL_FORMAT_Y16:
       return 1;
     case PIXEL_FORMAT_NV12:
     case PIXEL_FORMAT_NV21:
@@ -1041,6 +1043,8 @@ gfx::Size VideoFrame::SampleSize(VideoPixelFormat format, size_t plane) {
         case PIXEL_FORMAT_RGB24:
         case PIXEL_FORMAT_RGB32:
         case PIXEL_FORMAT_MJPEG:
+        case PIXEL_FORMAT_Y8:
+        case PIXEL_FORMAT_Y16:
           break;
       }
   }
@@ -1058,6 +1062,7 @@ int VideoFrame::BytesPerElement(VideoPixelFormat format, size_t plane) {
       return 4;
     case PIXEL_FORMAT_RGB24:
       return 3;
+    case PIXEL_FORMAT_Y16:
     case PIXEL_FORMAT_UYVY:
     case PIXEL_FORMAT_YUY2:
     case PIXEL_FORMAT_YUV420P9:
@@ -1079,6 +1084,7 @@ int VideoFrame::BytesPerElement(VideoPixelFormat format, size_t plane) {
     case PIXEL_FORMAT_YV16:
     case PIXEL_FORMAT_YV12A:
     case PIXEL_FORMAT_YV24:
+    case PIXEL_FORMAT_Y8:
       return 1;
     case PIXEL_FORMAT_MJPEG:
       return 0;