Let releases script retrieve information about chromium branches.

tools/push-to-trunk/test_scripts.py

Index: tools/push-to-trunk/test_scripts.py
diff --git a/tools/push-to-trunk/test_scripts.py b/tools/push-to-trunk/test_scripts.py
index 108d1519e0ef8b4740a713167b4b81b81eb3ca3b..a55a9bf1afffecd59f3faa41131952bd256e6424 100644
--- a/tools/push-to-trunk/test_scripts.py
+++ b/tools/push-to-trunk/test_scripts.py
@@ -1228,6 +1228,11 @@ LOG=N
       Git("svn find-rev c_hash2", "4567"),
       Git("checkout -f HEAD -- %s" % TEST_CONFIG[DEPS_FILE], "",
           cb=ResetDEPS(567)),
+      Git("branch -r", " weird/123\n  branch-heads/7\n"),
+      Git("checkout -f branch-heads/7 -- %s" % TEST_CONFIG[DEPS_FILE], "",
+          cb=ResetDEPS(345)),
+      Git("checkout -f HEAD -- %s" % TEST_CONFIG[DEPS_FILE], "",
+          cb=ResetDEPS(567)),
       Git("checkout -f master", ""),
       Git("branch -D %s" % TEST_CONFIG[BRANCHNAME], ""),
       Git("checkout -f some_branch", ""),
@@ -1250,15 +1255,15 @@ LOG=N
     expected_json = [
       {"bleeding_edge": "", "patches_merged": "", "version": "3.22.3",
        "chromium_revision": "4567", "branch": "trunk", "revision": "345",
-       "review_link": "", "date": "",
+       "review_link": "", "date": "", "chromium_branch": "7",
        "revision_link": "https://code.google.com/p/v8/source/detail?r=345"},
       {"patches_merged": "", "bleeding_edge": "", "version": "3.21.2",
        "chromium_revision": "", "branch": "3.21", "revision": "123",
-       "review_link": "", "date": "03:15",
+       "review_link": "", "date": "03:15", "chromium_branch": "",
        "revision_link": "https://code.google.com/p/v8/source/detail?r=123"},
       {"patches_merged": "12", "bleeding_edge": "", "version": "3.3.1.1",
        "chromium_revision": "", "branch": "3.3", "revision": "234",
-       "review_link": "fake.com", "date": "18:15",
+       "review_link": "fake.com", "date": "18:15", "chromium_branch": "",
        "revision_link": "https://code.google.com/p/v8/source/detail?r=234"},
     ]
     self.assertEquals(expected_json, json.loads(FileToText(json_output)))