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

appengine/findit/common/git_repository.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 base64
 from datetime import datetime
 from datetime import timedelta
 import json
 import re
 
@@ skipping 26 matching lines @@
     self.repo_url = repo_url
     if self.repo_url.endswith('/'):
       self.repo_url = self.repo_url[:-1]
     self.http_client = http_client
 
   @property
   def identifier(self):
     return self.repo_url
 
   @Cached(namespace='Gitiles-json-view', expire_time=CACHE_EXPIRE_TIME_SECONDS)
-  def _SendRequestForJsonResponse(self, url, params=None):
+  def _SendRequestForJsonResponse(self, url, params=None, headers=None):

[stgao, 2016/05/05 21:02:47]

It seems not clean for the GitRepository to know about http headers which should
be handled by HttpClient.

[Sharu Jiang, 2016/05/05 23:03:45]

Done.

     if params is None:  # pragma: no cover
       params = {}
     params['format'] = 'json'
 
     # Gerrit prepends )]}' to json-formatted response.
     prefix = ')]}\'\n'
 
-    status_code, content = self.http_client.Get(url, params)
+    status_code, content = self.http_client.Get(url, params, headers=headers)
     if status_code != 200:
       return None
     elif not content or not content.startswith(prefix):
       raise Exception('Response does not begin with %s' % prefix)
 
     return json.loads(content[len(prefix):])
 
   @Cached(namespace='Gitiles-text-view', expire_time=CACHE_EXPIRE_TIME_SECONDS)
-  def _SendRequestForTextResponse(self, url):
-    status_code, content = self.http_client.Get(url, {'format': 'text'})
+  def _SendRequestForTextResponse(self, url, headers=None):
+    status_code, content = self.http_client.Get(url, {'format': 'text'},
+                                                headers=headers)
     if status_code != 200:
       return None
     return base64.b64decode(content)
 
   def ExtractCommitPositionAndCodeReviewUrl(self, message):
     """Returns the commit position and code review url in the commit message.
 
     Returns:
       (commit_position, code_review_url)
     """
@@ skipping 174 matching lines @@
     changelogs = []
 
     for revision in revisions:
       changelog = self.GetChangeLog(revision)
       if not changelog:
         raise Exception('Failed to pull changelog for revision %s' % revision)
 
       changelogs.append(changelog)
 
     return changelogs
+
+  def GetRevisionForChromeVersion(self, version):
+    """Gets the githash revision of a chrome version."""
+    changelog = self.GetChangeLog(version)
+    if not changelog:
+      return None
+
+    return changelog.revision