Stop running webgl_conformance_gl_tests on new Win AMD card.

content/test/gpu/generate_buildbot_json.py

Index: content/test/gpu/generate_buildbot_json.py
diff --git a/content/test/gpu/generate_buildbot_json.py b/content/test/gpu/generate_buildbot_json.py
index 797ba0e19e250914fe4b0d05e3c49f650bbb26ca..6281bbad122e18659443040ed662bd72f7e0498e 100755
--- a/content/test/gpu/generate_buildbot_json.py
+++ b/content/test/gpu/generate_buildbot_json.py
@@ -1135,14 +1135,18 @@ TELEMETRY_GPU_INTEGRATION_TESTS = {
       {
         'swarming_dimension_sets': [
           # crbug.com/555545 and crbug.com/649824:
-          # Disable webgl_conformance_gl_tests on older Win/AMD cards.
-          # (They seem to be running fine on newer cards.)
+          # Disable webgl_conformance_gl_tests on some Win/AMD cards.
+          # Always fails on older cards, flaky on newer cards.
           # Note that these must match the GPUs exactly; wildcard
           # matches (i.e., only device ID) aren't supported!
           {
             'gpu': '1002:6779',
             'os': 'Windows-2008ServerR2-SP1'
           },
+          {
+            'gpu': '1002:6613',
+            'os': 'Windows-2008ServerR2-SP1'
+          },
           # BUG 590951: Disable webgl_conformance_gl_tests on Win/Intel
           {
             'gpu': '8086:041a',