media: Create Mojo StructTraits for VideoFrame

media/mojo/services/mojo_cdm_allocator_unittest.cc

Index: media/mojo/services/mojo_cdm_allocator_unittest.cc
diff --git a/media/mojo/services/mojo_cdm_allocator_unittest.cc b/media/mojo/services/mojo_cdm_allocator_unittest.cc
index 8fad63176a10585df5494e36b605f9764b410e99..11842aea4e4553b93e15dd9987dd91b6d0891833 100644
--- a/media/mojo/services/mojo_cdm_allocator_unittest.cc
+++ b/media/mojo/services/mojo_cdm_allocator_unittest.cc
@@ -94,7 +94,7 @@ TEST_F(MojoCdmAllocatorTest, CreateCdmVideoFrame) {
   // Create a VideoFrameImpl and initialize it.
   std::unique_ptr<VideoFrameImpl> video_frame = CreateCdmVideoFrame();
   video_frame->SetFormat(cdm::kI420);
-  video_frame->SetSize(cdm::Size(kHeight, kWidth));
+  video_frame->SetSize(cdm::Size(kWidth, kHeight));
   video_frame->SetStride(VideoFrameImpl::kYPlane,
                          static_cast<uint32_t>(VideoFrame::RowBytes(
                              VideoFrame::kYPlane, kFormat, kWidth)));