Reenable Pixel_Video* tests on Android FYI SkiaRenderer Vulkan (Pixel 2).

These should be working again with:

https://skia-review.googlesource.com/c/skia/+/263558 (Move GrVkFormatColorTypePairIsValid assert back into GrVkGpu::check_image_info)

TBR=kbr@chromium.org

Bug: 1037949
Change-Id: I739ef867cf1ef12086eb52a1f3666d602840474f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1989138Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Cr-Commit-Position: refs/heads/master@{#730227}

content/test/gpu/gpu_tests/test_expectations/pixel_expectations.txt

@@ -238,11 +238,4 @@ crbug.com/1028975 [ win ] Pixel_PrecisionRoundedCorner [ RetryOnFailure ]
 # VP9 appears to not recover correctly after GPU process crashes on Windows.
 crbug.com/1033982 [ win nvidia ] Pixel_Video_Context_Loss_VP9 [ RetryOnFailure ]
 
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_MP4 [ Failure ]
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_MP4_FourColors_Aspect_4x3 [ Failure ]
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_MP4_FourColors_Rot_180 [ Failure ]
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_MP4_FourColors_Rot_270 [ Failure ]
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_MP4_FourColors_Rot_90 [ Failure ]
-crbug.com/1037949 [ use-vulkan android android-chromium skia-renderer ] Pixel_Video_VP9 [ Failure ]
-
 crbug.com/1037654 [ use-vulkan android android-chromium skia-renderer ] Pixel_WebGLCopyImage [ Failure ]