[Findit] Fetch DEPS from buildspec/ instead of trunk for chrome official builds.

appengine/findit/common/dependency.py

 # Copyright 2014 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
 
 
 class Dependency(object):
   """Represents a dependency in Chrome, like blink, v8, pdfium, etc."""
-  def __init__(self, path, repo_url, revision, deps_file='DEPS'):
+  def __init__(self, path, repo_url, revision,
+               deps_file='DEPS', deps_repo_url=None, deps_repo_revision=None):
     self.path = path
     self.repo_url = repo_url
     self.revision = revision
     self.deps_file = deps_file
+
+    if deps_repo_url is None:
+      self.deps_repo_url = repo_url
+    else:
+      self.deps_repo_url = deps_repo_url
+
+    if deps_repo_revision is None:
+      self.deps_repo_revision = revision
+    else:
+      self.deps_repo_revision = deps_repo_revision
+
     self.parent = None
     self.children = dict()
 
   def SetParent(self, parent):
     assert self.parent is None
     self.parent = parent
     self.parent.AddChild(self)
 
   def AddChild(self, child):
     self.children[child.path] = child
@@ skipping 14 matching lines @@
 class DependencyRoll(collections.namedtuple(
     'DependencyRoll', ('path', 'repo_url', 'old_revision', 'new_revision'))):
   """Represents a dependency roll (revision update) in chromium.
 
   Note: It is possible that the DEPS roll is a revert so that ``new_revision``
   is actually older than ``old_revision`` in the dependency.
   """
 
   def ToDict(self):
     return self._asdict()