Add presubmit trybot for skia.

scripts/slave/recipe_modules/gclient/config.py

 # Copyright 2013 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 types
 
 from slave.recipe_config import config_item_context, ConfigGroup, BadConf
 from slave.recipe_config import ConfigList, Dict, Single, Static, Set, List
 
 from . import api as gclient_api
@@ skipping 363 matching lines @@
 @config_ctx(config_vars={'GIT_MODE': True})
 def depot_tools(c):  # pragma: no cover
   if not c.GIT_MODE:
     raise BadConf('depot_tools only supports git')
   s = c.solutions.add()
   s.name = 'depot_tools'
   s.url = ChromiumGitURL(c, 'chromium', 'tools', 'depot_tools.git')
   m = c.got_revision_mapping
   m['depot_tools'] = 'got_revision'
 
 @config_ctx(config_vars={'GIT_MODE': True})

[Adrian Kuegel, 2015/05/18 11:44:26]

Question @sergiyb: Do you think I should rather move this to the skia recipe
module, and add the skia dependency to the run_presubmit recipe? Or is it ok
like this?

[Sergiy Byelozyorov, 2015/05/18 14:27:05]

I think it's fine here. 

+def skia(c):  # pragma: no cover
+  if not c.GIT_MODE:
+    raise BadConf('skia only supports git')
+  s = c.solutions.add()
+  s.name = 'skia'
+  s.url = 'https://skia.googlesource.com/skia.git'
+  m = c.got_revision_mapping
+  m['skia'] = 'got_revision'
+
+@config_ctx(config_vars={'GIT_MODE': True})
 def chrome_golo(c): # pragma: no cover
   if not c.GIT_MODE:
     raise BadConf('chrome_golo only supports git')
   s = c.solutions.add()
   s.name = 'chrome_golo'
   s.url = 'https://chrome-internal.googlesource.com/chrome-golo/chrome-golo.git'
   c.got_revision_mapping['chrome_golo'] = 'got_revision'
 
 @config_ctx(config_vars={'GIT_MODE': True})
 def build_internal(c):  # pragma: no cover
@@ skipping 101 matching lines @@
   soln.custom_deps = {}
   c.src_root = 'src'
   c.got_revision_mapping['chrome_from_buildspec'] = 'got_revision'
 
 @config_ctx()
 def catapult(c):
   soln = c.solutions.add()
   soln.name = 'catapult'
   soln.url = ('https://chromium.googlesource.com/external/github.com/'
               'catapult-project/catapult.git')