Change GetIntegerv(IMPLEMENTATION_COLOR_READ_FORMAT/TYPE) behavior.

content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

Index: content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
diff --git a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
index 792261f9424d979aed14e856bbf3a4ac6ea78af8..aa8af573ff623c2c941ae1b9eefa405daeab23df 100644
--- a/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
+++ b/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
@@ -57,6 +57,13 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     # All platforms.
     self.Flaky('conformance2/query/occlusion-query.html', bug=603168)
 
+    # This is temporary until the error tolerance is fixed in the test.
+    # see https://codereview.chromium.org/2577293002/.
+    self.Fail('conformance2/reading/read-pixels-from-fbo-test.html',
+        ['mac', 'linux'], bug=662802)
+    # self.Fail('conformance2/reading/read-pixels-from-fbo-test.html',
+    #     ['linux', 'amd'], bug=483282)
+
     # Windows only.
     # We are awesome!
 
@@ -655,8 +662,6 @@ class WebGL2ConformanceExpectations(WebGLConformanceExpectations):
     self.Fail('deqp/functional/gles3/texturespecification/' +
         'texstorage3d_format_size.html',
         ['linux', 'amd'], bug=483282)
-    self.Fail('conformance2/reading/read-pixels-from-fbo-test.html',
-        ['linux', 'amd'], bug=483282)
     self.Fail('deqp/functional/gles3/vertexarrays/' +
         'single_attribute.output_type.unsigned_int.html',
         ['linux', 'amd'], bug=483282)