Add presubmit trybot for skia.

scripts/slave/recipe_modules/gclient/config.py

Index: scripts/slave/recipe_modules/gclient/config.py
diff --git a/scripts/slave/recipe_modules/gclient/config.py b/scripts/slave/recipe_modules/gclient/config.py
index bb5058ee94555decbf0975dcef1f23780feafd0a..cf4005324670b9cd7ba5d258970ea421b3788c89 100644
--- a/scripts/slave/recipe_modules/gclient/config.py
+++ b/scripts/slave/recipe_modules/gclient/config.py
@@ -382,6 +382,16 @@ def depot_tools(c):  # pragma: no cover
   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')