Fix WebGL conformance2/textures/misc/copy-texture-image.html test

Add additional internal formats for CopyTexImage2D
Unsuppresses previously failing test

# for webgl2_conformance_expectations.py

Bug: 905531
Change-Id: Ib9f525afa0188def6464c9f6134efc0090825f6b
TBR: kbr@chromium.org
Cq-Include-Trybots: luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_angle_rel_ng;luci.chromium.try:win_angle_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/1340369
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611562}

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

@@ -56,9 +56,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
         'conformance2/glsl3/const-struct-from-array-as-function-parameter.html',
         ['win', 'nvidia', 'opengl'], bug=874620)
 
-    # Failing test updated in https://github.com/KhronosGroup/WebGL/pull/2226
-    self.Fail('conformance2/textures/misc/copy-texture-image.html', bug=905531)
-
     # Failing new test added in https://github.com/KhronosGroup/WebGL/pull/2665
     self.Fail('conformance2/textures/misc/tex-subimage3d-canvas-bug.html',
               ['linux'], bug=859400)

third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.cc

@@ -866,7 +866,8 @@ static const GLenum kSupportedInternalFormatsES3[] = {
     GL_SRGB8_ALPHA8, GL_R8I,      GL_R8UI,     GL_R16I,       GL_R16UI,
     GL_R32I,         GL_R32UI,    GL_RG8I,     GL_RG8UI,      GL_RG16I,
     GL_RG16UI,       GL_RG32I,    GL_RG32UI,   GL_RGBA8I,     GL_RGBA8UI,
-    GL_RGBA16I,      GL_RGBA16UI, GL_RGBA32I,  GL_RGBA32UI,
+    GL_RGBA16I,      GL_RGBA16UI, GL_RGBA32I,  GL_RGBA32UI,   GL_RGB32I,
+    GL_RGB32UI,      GL_RGB8I,    GL_RGB8UI,   GL_RGB16I,     GL_RGB16UI,
 };
 
 // ES3 enums only supported by TexImage
@@ -882,12 +883,6 @@ static const GLenum kSupportedInternalFormatsTexImageES3[] = {
     GL_RGB9_E5,
     GL_RGB16F,
     GL_RGB32F,
-    GL_RGB8UI,
-    GL_RGB8I,
-    GL_RGB16UI,
-    GL_RGB16I,
-    GL_RGB32UI,
-    GL_RGB32I,
     GL_RGBA8_SNORM,
     GL_RGBA16F,
     GL_RGBA32F,