Revert "Remove GPU's Linux tests from the CQ."

This reverts commit cb86ee416ec894c59d504acf91d2924617fccd9b.

Reason for revert: Restoring full functionality

Original change's description:
> Remove GPU's Linux tests from the CQ.
>
> The datacenter holding GPU's bots is offline, so these CQ tests are
> stuck. Remove them from the CQ while we work on getting ATL back online.
>
> TBR=gbeaty
>
> No-Try: true
> Bug: 1108842
> Change-Id: I3833475c71d7f79380c22303c989d05baf2fd8fd
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2316438
> Reviewed-by: Haiyang Pan <[email protected]>
> Commit-Queue: Haiyang Pan <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#791275}

[email protected],[email protected],[email protected]

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1108842
Change-Id: I7da7f5d8bb91a4d9e5f6fe50ca97dbd0be0dbd89
No-Tree-Checks: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2318509
Commit-Queue: Garrett Beaty <[email protected]>
Reviewed-by: Garrett Beaty <[email protected]>
Reviewed-by: Erik Staab <[email protected]>
Reviewed-by: Haiyang Pan <[email protected]>
Cr-Commit-Position: refs/heads/master@{#791433}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index a9de038..dbd11f5 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -1131,54 +1131,51 @@
     'modifications': {
       # TODO(kbr): figure out a better way to specify blocks of
       # arguments like this for tests on multiple machines.
-
-      # TODO(crbug.com/1108842): Add GPU back once ATL capacity is
-      # online.
-      #'Linux ASan LSan Tests (1)': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
-      #'Linux CFI': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
-      #'Linux TSan Tests': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
+      'Linux ASan LSan Tests (1)': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
+      'Linux CFI': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
+      'Linux TSan Tests': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
     },
   },
   'gl_tests_validating': {
@@ -1192,54 +1189,51 @@
     'modifications': {
       # TODO(kbr): figure out a better way to specify blocks of
       # arguments like this for tests on multiple machines.
-
-      # TODO(crbug.com/1108842): Add GPU back once ATL capacity is
-      # online.
-      #'Linux ASan LSan Tests (1)': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
-      #'Linux CFI': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
-      #'Linux TSan Tests': {
-      #  'args': [
-      #    '--use-gpu-in-tests',
-      #    '--no-xvfb',
-      #  ],
-      #  'swarming': {
-      #    'dimension_sets': [
-      #      {
-      #        'gpu': '10de:1cb3',
-      #        'os': 'Ubuntu',
-      #        'pool': 'chromium.tests.gpu',
-      #      },
-      #    ],
-      #  },
-      #},
+      'Linux ASan LSan Tests (1)': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
+      'Linux CFI': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
+      'Linux TSan Tests': {
+        'args': [
+          '--use-gpu-in-tests',
+          '--no-xvfb',
+        ],
+        'swarming': {
+          'dimension_sets': [
+            {
+              'gpu': '10de:1cb3',
+              'os': 'Ubuntu',
+              'pool': 'chromium.tests.gpu',
+            },
+          ],
+        },
+      },
       'android-marshmallow-x86-rel': {
         'args': [
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.emulator.gl_tests.filter',