Broaden the WebGL video flaky expectations on Android.

Some of the expectations were not covering ANGLE/passthrough command
decoder on Android.  Broaden the flaky exepctations to cover all
Android.

TBR=kbr@chromium.org

BUG=981579
BUG=834933

Change-Id: I859f2caace96cc7868c403a145165ede603f9619
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1692765Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#675875}

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

@@ -451,7 +451,8 @@ crbug.com/352645 [ android-webview-instrumentation ] conformance/textures/video/
 crbug.com/352645 [ android android-webview-instrumentation no-angle ] conformance/textures/misc/texture-npot-video.html [ Skip ]
 
 # These video tests appear to be flaky.
-crbug.com/907512 [ android release ] conformance/textures/video/tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html [ RetryOnFailure ]
+crbug.com/834933 [ android android-chromium ] conformance/textures/video/tex-2d-rgba-rgba-unsigned_short_4_4_4_4.html [ RetryOnFailure ]
+crbug.com/907512 [ android android-chromium ] conformance/textures/video/tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html [ RetryOnFailure ]
 crbug.com/733599 [ android ] conformance/textures/video/tex-2d-alpha-alpha-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/733599 [ android no-angle ] conformance/textures/video/tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/733599 [ android no-angle ] conformance/textures/video/tex-2d-luminance-luminance-unsigned_byte.html [ RetryOnFailure ]
@@ -569,7 +570,6 @@ crbug.com/891456 [ android nvidia ] conformance/textures/image_bitmap_from_video
 crbug.com/891456 [ android nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-rgb-rgb-unsigned_short_5_6_5.html [ RetryOnFailure ]
 crbug.com/891456 [ android nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-rgba-rgba-unsigned_byte.html [ RetryOnFailure ]
 crbug.com/891456 [ android nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html [ RetryOnFailure ]
-crbug.com/891456 [ android nvidia ] conformance/textures/video/tex-2d-rgba-rgba-unsigned_short_4_4_4_4.html [ RetryOnFailure ]
 
 # Flaky timeout on android_n5x_swarming_rel and
 # android-marshmallow-arm64-rel.