[Findit] Add findit_for_client to do analysis based on client_id

appengine/findit/common/appengine_util.py

Index: appengine/findit/common/appengine_util.py
diff --git a/appengine/findit/common/appengine_util.py b/appengine/findit/common/appengine_util.py
index 691731430da71626f9edb15f151b02d80162eb97..24a26e046285767ab4734688d1e92920cfb3846b 100644
--- a/appengine/findit/common/appengine_util.py
+++ b/appengine/findit/common/appengine_util.py
@@ -4,6 +4,7 @@
 
 import os
 
+from google.appengine.api import app_identity
 from google.appengine.api import modules
 
 
@@ -17,6 +18,11 @@ def GetCurrentVersion():  # pragma: no cover.
   return modules.get_current_version_name()
 
 
+def GetDefaultVersionHostname():  # pragma: no cover.
+  """Returns the default version hostname of this service."""
+  return app_identity.get_default_version_hostname()
+
+
 def GetTargetNameForModule(module_name, version=None):  # pragma: no cover.
   """Returns the target name for the given module and version.