Suppress 2 pixel tests on Android SkiaRenderer

Pixel_Video_BackdropFilter on GL and Vulkan
Pixel_Video_Context_Loss_VP9 on GL - already suppressed on Vulkan,
but maybe for a different reason

TBR=jonross

Bug: 1008450, 1008456
Change-Id: I89c211af2efcaaf05cb7a5dbd0c50b485a1f9321
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1827820Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Jonathan Ross <jonross@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700373}

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

@@ -222,7 +222,6 @@ crbug.com/991291 [ android skia-renderer use-vulkan ] Pixel_Video_MP4_FourColors
 crbug.com/991291 [ android skia-renderer use-vulkan ] Pixel_Video_MP4_FourColors_Rot_270 [ Skip ]
 crbug.com/991291 [ android skia-renderer use-vulkan ] Pixel_Video_MP4_FourColors_Rot_90 [ Skip ]
 crbug.com/991291 [ android skia-renderer use-vulkan ] Pixel_Video_VP9 [ Skip ]
-crbug.com/991291 [ android skia-renderer use-vulkan ] Pixel_Video_BackdropFilter [ Skip ]
 
 # Fails when the browser features SkiaRenderer & GL are enabled on Android.
 # The more specific matching criteria is to prevent collisions with other expectations.
@@ -230,6 +229,7 @@ crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Background
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_CanvasDisplayLinearRGBAccelerated2D [ Skip ]
 crbug.com/969864 [ android android-chromium skia-renderer use-gl no-use-vulkan ] Pixel_OffscreenCanvasTransferAfterStyleResize [ Skip ]
 crbug.com/969864 [ android android-chromium skia-renderer use-gl no-use-vulkan ] Pixel_OffscreenCanvasTransferBeforeStyleResize [ Skip ]
+crbug.com/1008456 [ android android-chromium skia-renderer use-gl no-use-vulkan ] Pixel_Video_Context_Loss_VP9 [ Skip ]
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Video_MP4 [ Skip ]
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Video_MP4_FourColors_Aspect_4x3 [ Skip ]
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Video_MP4_FourColors_Rot_180 [ Skip ]
@@ -238,6 +238,10 @@ crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Video_MP4_
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_Video_VP9 [ Skip ]
 crbug.com/969864 [ android skia-renderer use-gl no-use-vulkan ] Pixel_WebGL2_BlitFramebuffer_Result_Displayed [ Skip ]
 
+# Fails on Android SkiaRenderer, both GL and Vulkan
+crbug.com/1008450 [ android skia-renderer ] Pixel_Video_BackdropFilter [ Skip ]
+crbug.com/1007019 [ android skia-renderer ] Pixel_Video_MP4_Rounded_Corner [ Skip ]
+
 # Produces blank images on Intel HD 630 w/ Mesa 19.0.2
 crbug.com/976861 [ linux intel-0x5912 ] Pixel_OffscreenCanvasTransferToImageBitmap [ Skip ]
 
@@ -260,6 +264,3 @@ crbug.com/983600 [ mojave amd-0x6821 ] Pixel_CSSFilterEffects_NoOverlays [ Retry
 
 # Producing incorrect image on Win10 Intel HD 630 w/ 26.20.100.6912 drivers.
 crbug.com/997313 [ win intel-0x5912 ] Pixel_WebGL_PremultipliedAlpha_False [ Failure ]
-
-# Rounded corner pixel test fails on Android SkiaRenderer.
-crbug.com/1007019 [ android skia-renderer ] Pixel_Video_MP4_Rounded_Corner [ Skip ]