testing/buildbot: add fake bots to run Dawn's GPU tests.

BUG=chromium:901830

Change-Id: I5c5b0b08fadddc34f6a2d176ae39ebfae7e7f706
Reviewed-on: https://chromium-review.googlesource.com/c/1326157
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606840}

testing/buildbot/chromium.gpu.fyi.json

@@ -3546,6 +3546,50 @@
       }
     ]
   },
+  "Dawn GPU Win10 Release (Intel HD 630)": {
+    "gtest_tests": [
+      {
+        "args": [
+          "--use-gpu-in-tests",
+          "--test-launcher-retry-limit=0"
+        ],
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "gpu": "8086:5912-24.20.100.6286",
+              "os": "Windows-10",
+              "pool": "Chrome-GPU"
+            }
+          ],
+          "shards": 4
+        },
+        "test": "dawn_end2end_tests"
+      }
+    ]
+  },
+  "Dawn GPU Win10 Release (NVIDIA)": {
+    "gtest_tests": [
+      {
+        "args": [
+          "--use-gpu-in-tests",
+          "--test-launcher-retry-limit=0"
+        ],
+        "swarming": {
+          "can_use_on_swarming_builders": true,
+          "dimension_sets": [
+            {
+              "gpu": "10de:1cb3-23.21.13.8816",
+              "os": "Windows-10",
+              "pool": "Chrome-GPU"
+            }
+          ],
+          "shards": 4
+        },
+        "test": "dawn_end2end_tests"
+      }
+    ]
+  },
   "GPU FYI Linux Builder": {},
   "GPU FYI Linux Builder (dbg)": {},
   "GPU FYI Linux Ozone Builder": {},

testing/buildbot/generate_buildbot_json.py

@@ -873,6 +873,8 @@ class BBJSONGenerator(object):
       'Optional Mac Retina Release (NVIDIA)',
       'Optional Win10 Release (Intel HD 630)',
       'Optional Win10 Release (NVIDIA)',
+      'Dawn GPU Win10 Release (Intel HD 630)',
+      'Dawn GPU Win10 Release (NVIDIA)',
       'Win7 ANGLE Tryserver (AMD)',
       # chromium.fyi
       'linux-blink-rel-dummy',

testing/buildbot/gn_isolate_map.pyl

@@ -525,6 +525,11 @@
     "label": "//crypto:crypto_unittests",
     "type": "console_test_launcher",
   },
+  "dawn_end2end_tests": {
+    "label": "//third_party/dawn:dawn_end2end_tests",
+    "type": "raw",
+    "args": [],
+  },
   "dbus_unittests": {
     "label": "//dbus:dbus_unittests",
     "type": "windowed_test_launcher",

testing/buildbot/test_suites.pyl

@@ -1297,6 +1297,19 @@
       },
     },
 
+    'gpu_dawn_end2end_tests': {
+      'dawn_end2end_tests': {
+        'desktop_args': [
+          '--use-gpu-in-tests',
+          # Dawn test retries deliberately disabled to prevent flakiness.
+          '--test-launcher-retry-limit=0'
+        ],
+        'swarming': {
+          'shards': 4,
+        },
+      },
+    },
+
     'gpu_default_and_optional_win_specific_gtests': {
       'xr_browser_tests': {
         'args': [

testing/buildbot/waterfalls.pyl

@@ -1984,6 +1984,28 @@
           'gtest_tests': 'gpu_angle_deqp_android_gtests',
         },
       },
+      # BEGIN Fake builder used as mirror targets for Dawn's GPU tryservers
+      'Dawn GPU Win10 Release (Intel HD 630)': {
+        'os_type': 'win',
+        'browser_config': 'release',
+        'mixins': [
+          'win10_intel_hd_630_stable',
+        ],
+        'test_suites': {
+          'gtest_tests': 'gpu_dawn_end2end_tests',
+        },
+      },
+      'Dawn GPU Win10 Release (NVIDIA)': {
+        'os_type': 'win',
+        'browser_config': 'release',
+        'mixins': [
+          'win10_nvidia_quadro_p400_stable',
+        ],
+        'test_suites': {
+          'gtest_tests': 'gpu_dawn_end2end_tests',
+        },
+      },
+      # END Fake builder used as mirror targets for Dawn's GPU tryservers
       'GPU FYI Linux Builder' : {},
       'GPU FYI Linux Builder (dbg)' : {},
       'GPU FYI Linux Ozone Builder' : {},
@@ -2313,6 +2335,7 @@
           'gpu_telemetry_tests': 'gpu_fyi_mac_release_telemetry_tests',
         },
       },
+      # BEGIN Fake builder used as mirror targets for Optional GPU tryservers
       'Optional Android Release (Nexus 5X)': {
         'os_type': 'android',
         'mixins': [
@@ -2406,6 +2429,7 @@
         },
         'use_multi_dimension_trigger_script': True,
       },
+      # END Fake builder used as mirror targets for Optional GPU tryservers
       'Win10 FYI Debug (NVIDIA)': {
         'os_type': 'win',
         'browser_config': 'debug',