media: replace LUMINANCE_F16 by RG_88 for 9/10-bit h264 videos

cc/raster/raster_buffer_provider.cc

Index: cc/raster/raster_buffer_provider.cc
diff --git a/cc/raster/raster_buffer_provider.cc b/cc/raster/raster_buffer_provider.cc
index d34fe6e0a52a8a4ca2604b8469f8ff4346539934..138495207ff2892067af4e5db45790a802664111 100644
--- a/cc/raster/raster_buffer_provider.cc
+++ b/cc/raster/raster_buffer_provider.cc
@@ -33,6 +33,7 @@ bool IsSupportedPlaybackToMemoryFormat(ResourceFormat format) {
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
+    case RG_88:
     case LUMINANCE_F16:
       return false;
   }
@@ -120,6 +121,7 @@ void RasterBufferProvider::PlaybackToMemory(
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
+    case RG_88:
     case LUMINANCE_F16:
       NOTREACHED();
       return;
@@ -142,6 +144,7 @@ bool RasterBufferProvider::ResourceFormatRequiresSwizzle(
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
+    case RG_88:
     case LUMINANCE_F16:
       return false;
   }