Clean up linux passthrough test suppressions.

Some of these tests were fixed in specific ANGLE commits, others were
fixed by the bots being upgraded to new drivers, others are removed
because there are no failures on the flakiness dashboard.

Bug: 666384
Bug: 766918
Bug: 773861
Bug: 793055
Bug: 794339
Bug: 794341
Bug: 795030
Bug: 814905
Bug: 906066
Bug: 927407
Bug: 945877
Bug: 950787
Bug: 976283
Bug: angleproject:2761
Bug: angleproject:2952

Change-Id: I6c1041250461e1fe0713f2ca5498075d96b5308e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1698167Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
Cr-Commit-Position: refs/heads/master@{#676662}

content/test/gpu/gpu_tests/test_expectations/webgl2_conformance_expectations.txt

@@ -102,8 +102,6 @@ crbug.com/631317 [ d3d11 win nvidia ] deqp/functional/gles3/fbomultisample* [ Re
 crbug.com/679639 [ d3d11 win nvidia ] conformance2/rendering/draw-with-integer-texture-base-level.html [ Failure ]
 crbug.com/735464 [ d3d11 win nvidia ] deqp/functional/gles3/textureshadow/* [ RetryOnFailure ]
 crbug.com/907544 [ vulkan win passthrough nvidia ] conformance/uniforms/uniform-default-values.html [ RetryOnFailure ]
-crbug.com/945877 [ win passthrough ] conformance/attribs/gl-disabled-vertex-attrib.html [ Failure ]
-crbug.com/945877 [ linux passthrough ] conformance/attribs/gl-disabled-vertex-attrib.html [ Failure ]
 
 # Win / NVIDIA Quadro P400 / D3D11 flaky failures
 crbug.com/680754 [ d3d11 win nvidia-0x1cb3 ] deqp/data/gles3/shaders/functions.html [ Failure ]
@@ -229,15 +227,6 @@ crbug.com/951628 [ passthrough ] conformance/rendering/blending.html [ Failure ]
 crbug.com/953120 [ passthrough ] conformance/programs/program-test.html [ Failure ]
 
 # Passthrough command decoder / OpenGL
-crbug.com/602688 [ opengl passthrough ] conformance2/misc/uninitialized-test-2.html [ Failure ]
-crbug.com/602688 [ opengl passthrough ] conformance2/rendering/draw-buffers-dirty-state-bug.html [ Failure ]
-crbug.com/602688 [ opengl passthrough ] conformance2/state/gl-get-calls.html [ Failure ]
-crbug.com/602688 [ opengl passthrough ] deqp/functional/gles3/integerstatequery.html [ Failure ]
-crbug.com/602688 [ opengl passthrough ] conformance/textures/canvas/tex-2d-alpha-alpha-unsigned_byte.html [ Failure ]
-crbug.com/602688 [ opengl passthrough ] conformance/textures/canvas/tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html [ Failure ]
-crbug.com/795030 [ opengl passthrough ] deqp/functional/gles3/shadercommonfunction.html [ Failure ]
-crbug.com/794341 [ opengl passthrough ] deqp/functional/gles3/shaderpackingfunction.html [ Failure ]
-crbug.com/814905 [ opengl passthrough ] conformance2/rendering/attrib-type-match.html [ Failure ]
 crbug.com/angleproject/2994 [ opengl passthrough ] conformance2/textures/misc/copy-texture-image-same-texture.html [ Failure ]
 
 # Passthrough command decoder / OpenGL / Windows
@@ -254,21 +243,12 @@ crbug.com/602688 [ opengl win passthrough intel ] conformance2/textures/misc/tex
 crbug.com/602688 [ opengl win passthrough intel ] conformance2/glsl3/vector-dynamic-indexing-swizzled-lvalue.html [ Failure ]
 crbug.com/602688 [ opengl win passthrough intel ] conformance2/glsl3/vector-dynamic-indexing.html [ Failure ]
 crbug.com/angleproject/2880 [ opengl win passthrough intel ] deqp/functional/gles3/shaderbuiltinvar.html [ Failure ]
+crbug.com/795030 [ opengl win passthrough intel ] deqp/functional/gles3/shadercommonfunction.html [ Failure ]
 crbug.com/957631 [ opengl win passthrough intel ] conformance2/rendering/element-index-uint.html [ Failure ]
 crbug.com/963450 [ opengl win passthrough intel ] deqp/functional/gles3/textureshadow/cube_* [ Failure ]
 
 # Passthrough command decoder / Linux / OpenGL / NVIDIA
-crbug.com/773861 [ opengl linux passthrough nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html [ Failure ]
-crbug.com/773861 [ opengl linux passthrough nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-luminance-luminance-unsigned_byte.html [ Failure ]
-crbug.com/766918 [ opengl linux passthrough nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-rgba-rgba-unsigned_short_5_5_5_1.html [ Failure ]
-crbug.com/766918 [ opengl linux passthrough nvidia ] conformance/textures/image_bitmap_from_video/tex-2d-rgb-rgb-unsigned_short_5_6_5.html [ Failure ]
 crbug.com/766918 [ opengl linux passthrough nvidia ] conformance2/textures/image_bitmap_from_video/* [ RetryOnFailure ]
-crbug.com/793055 [ opengl linux passthrough nvidia ] deqp/functional/gles3/shaderoperator/common_functions_* [ Failure ]
-crbug.com/927407 [ opengl linux passthrough nvidia ] conformance/extensions/webgl-compressed-texture-s3tc.html [ RetryOnFailure ]
-
-# Passthrough command decoder / Linux / OpenGL / Intel
-crbug.com/angleproject/2761 [ opengl linux passthrough intel ] conformance2/textures/misc/tex-mipmap-levels.html [ Failure ]
-crbug.com/950787 [ opengl linux passthrough intel ] conformance/extensions/webgl-compressed-texture-s3tc.html [ RetryOnFailure ]
 
 # Regressions in 10.12.4.
 crbug.com/705865 [ sierra intel ] conformance2/textures/misc/tex-base-level-bug.html [ Failure ]
@@ -584,8 +564,6 @@ crbug.com/905011 [ linux intel mesa_lt_17.3.9 ] conformance2/textures/misc/tex-s
 crbug.com/666384 [ linux intel mesa_lt_17.3.9 ] deqp/functional/gles3/shadertexturefunction/texturesize.html [ Failure ]
 crbug.com/666384 [ linux intel mesa_lt_17.3.9 ] conformance2/textures/misc/tex-3d-mipmap-levels-intel-bug.html [ Failure ]
 crbug.com/905011 [ linux intel opengl passthrough ] conformance2/textures/misc/tex-subimage3d-pixel-buffer-bug.html [ Failure ]
-crbug.com/666384 [ linux intel opengl passthrough ] deqp/functional/gles3/shadertexturefunction/texturesize.html [ Failure ]
-crbug.com/666384 [ linux intel opengl passthrough ] conformance2/textures/misc/tex-3d-mipmap-levels-intel-bug.html [ Failure ]
 
 # Linux AMD only.
 # It looks like AMD shader compiler rejects many valid ES3 semantics.

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

@@ -95,27 +95,8 @@ crbug.com/953120 conformance/programs/program-handling.html [ Failure ]
 # And restore ['linux', 'intel'], bug=928530 as Fail
 crbug.com/953120 [ passthrough ] conformance/programs/program-test.html [ Failure ]
 
-# Passthrough command decoder / OpenGL
-crbug.com/angleproject/2952 [ opengl passthrough ] conformance/textures/canvas/tex-2d-alpha-alpha-unsigned_byte.html [ Failure ]
-crbug.com/angleproject/2952 [ opengl passthrough ] conformance/textures/canvas/tex-2d-luminance_alpha-luminance_alpha-unsigned_byte.html [ Failure ]
-
-# Intel graphics driver issue. Passed on 25.20.100.6471
-crbug.com/665521 [ intel opengl passthrough ] conformance/glsl/constructors/glsl-construct-mat2.html [ Failure ]
-
-# Passthrough command decoder / OpenGL / AMD
-crbug.com/1523 [ amd opengl linux passthrough ] conformance/extensions/webgl-draw-buffers.html [ Failure ]
-
-crbug.com/665521 [ amd opengl passthrough ] conformance/glsl/constructors/glsl-construct-mat2.html [ Failure ]
-crbug.com/665521 [ amd opengl passthrough ] conformance/glsl/constructors/glsl-construct-vec-mat-corner-cases.html [ Failure ]
-crbug.com/665521 [ linux amd opengl passthrough ] conformance/glsl/constructors/glsl-construct-vec-mat-index.html [ Failure ]
-crbug.com/665521 [ linux amd opengl passthrough ] conformance/glsl/misc/shader-struct-scope.html [ Failure ]
 # TODO(kbr): re-add after global suppression is removed.
 # crbug.com/1007 [ linux amd opengl passthrough ] conformance/glsl/misc/shaders-with-invariance.html [ Skip ]
-crbug.com/665521 [ linux amd opengl passthrough ] conformance/glsl/misc/struct-nesting-of-variable-names.html [ Failure ]
-crbug.com/angleproject/1635 [ amd opengl passthrough ] conformance/renderbuffers/renderbuffer-initialization.html [ Failure ]
-crbug.com/665521 [ amd opengl passthrough ] conformance/renderbuffers/framebuffer-state-restoration.html [ Failure ]
-crbug.com/665521 [ amd opengl passthrough ] conformance/uniforms/out-of-bounds-uniform-array-access.html [ Failure ]
-crbug.com/665521 [ amd opengl passthrough ] conformance/textures/misc/texture-attachment-formats.html [ Failure ]
 
 # Win / AMD / Passthrough command decoder / D3D11
 crbug.com/685232 [ win amd d3d11 passthrough ] conformance/textures/misc/copytexsubimage2d-subrects.html [ RetryOnFailure ]
@@ -413,9 +394,6 @@ crbug.com/479260 [ linux amd no-angle ] conformance/extensions/angle-instanced-a
 # crbug.com/479952 [ linux amd no-passthrough ] conformance/glsl/misc/shaders-with-invariance.html [ Failure ]
 
 # Linux passthrough AMD
-crbug.com/794339 [ linux amd passthrough ] conformance/renderbuffers/depth-renderbuffer-initialization.html [ Failure ]
-crbug.com/794339 [ linux amd passthrough ] conformance/renderbuffers/stencil-renderbuffer-initialization.html [ Failure ]
-crbug.com/906066 [ linux amd passthrough ] conformance/rendering/draw-webgl-to-canvas-2d-repeatedly.html [ Failure ]
 crbug.com/960808 [ linux amd passthrough ] conformance/glsl/misc/shader-with-non-reserved-words.html [ Failure ]
 
 # Linux passthrough AMD OpenGL