webrtc: drop dependency on chromium_tests; extract chromium_swarming

scripts/slave/recipe_modules/chromium_swarming/api.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import collections
+
+from recipe_engine import recipe_api
+
+
+PER_TARGET_SWARMING_DIMS = collections.defaultdict(dict)
+PER_TARGET_SWARMING_DIMS.update({
+    'android': {
+      'android_devices': '6',
+      'cpu': None,
+      'gpu': None,
+      'os': 'Android',
+    }
+})
+
+
+MASTER_SWARMING_PRIORITIES = collections.defaultdict(lambda: 25)
+MASTER_SWARMING_PRIORITIES.update({
+    'chromium.fyi': 35,  # This should be lower than the CQ.
+    'chromium.memory.fyi': 27,
+})
+
+
+class ChromiumSwarmingApi(recipe_api.RecipeApi):
+  def configure_swarming(self, project_name, precommit, mastername=None):
+    """Configures default swarming dimensions and tags.
+
+    Uses the 'chromium' global config to determine target platform defaults,
+    make sure something like chromium_tests.configure_build() has been called
+    beforehand.
+
+    Args:
+      project_name: Lowercase name of the project, e.g. "blink", "chromium".
+      precommit: Boolean flag to indicate whether the tests are running before
+          the changes are commited.
+    """
+
+    # Set platform-specific default dims.
+    target_platform = self.m.chromium.c.TARGET_PLATFORM
+    swarming_dims = PER_TARGET_SWARMING_DIMS[target_platform]
+    for k, v in swarming_dims.iteritems():
+      self.m.swarming.set_default_dimension(k, v)
+
+    self.m.swarming.set_default_dimension('pool', 'Chrome')
+    self.m.swarming.add_default_tag('project:%s' % project_name)
+    self.m.swarming.default_idempotent = True
+
+    if precommit:
+      self.m.swarming.default_priority = 30
+      self.m.swarming.add_default_tag('purpose:pre-commit')
+      requester = self.m.properties.get('requester')
+      if requester == 'commit-bot@chromium.org':

[tandrii(chromium), 2016/07/13 11:27:03]

can this instead be a api.properties.category 'cq' or cq experimental?

[Paweł Hajdan Jr., 2016/07/13 11:28:03]

This is preexisting code just being moved.

I'm not sure what the change you're suggesting would mean.

[tandrii(chromium), 2016/07/13 11:30:56]

Yeahk i know, that's why I'm asking about another Cl.
I mean don't check the requester email, check the category instead (it's either
git cl try, cq or cq experimental), afaik.

+        self.m.swarming.add_default_tag('purpose:CQ')
+        blamelist = self.m.properties.get('blamelist')
+        if len(blamelist) == 1:
+          requester = blamelist[0]
+      else:
+        self.m.swarming.add_default_tag('purpose:ManualTS')
+      self.m.swarming.default_user = requester
+
+      patch_project = self.m.properties.get('patch_project')
+      if patch_project:
+        self.m.swarming.add_default_tag('patch_project:%s' % patch_project)
+    else:
+      self.m.swarming.default_priority = MASTER_SWARMING_PRIORITIES[mastername]
+      self.m.swarming.add_default_tag('purpose:post-commit')
+      self.m.swarming.add_default_tag('purpose:CI')