Dynamically generate a heading for Extension Docs API pages

chrome/common/extensions/docs/server2/patch_servlet_test.py

Index: chrome/common/extensions/docs/server2/patch_servlet_test.py
diff --git a/chrome/common/extensions/docs/server2/patch_servlet_test.py b/chrome/common/extensions/docs/server2/patch_servlet_test.py
index e62b95a64b68b1e0c3b10741653486ee94a5e2a5..8444dda265fe3e519f3abb4df887592eca259d5d 100755
--- a/chrome/common/extensions/docs/server2/patch_servlet_test.py
+++ b/chrome/common/extensions/docs/server2/patch_servlet_test.py
@@ -12,6 +12,7 @@ from patch_servlet import PatchServlet
 from render_servlet import RenderServlet
 from server_instance import ServerInstance
 from servlet import Request
+from test_branch_utility import TestBranchUtility
 from test_util import DisableLogging
 
 _ALLOWED_HOST = 'https://chrome-apps-doc.appspot.com'
@@ -24,6 +25,9 @@ class _PatchServletDelegate(RenderServlet.Delegate):
   def CreateAppSamplesFileSystem(self, object_store_creator):
     return EmptyDirFileSystem()
 
+  def CreateBranchUtility(self, object_store_creator):
+    return TestBranchUtility()
+
   def CreateHostFileSystemForBranch(self, channel):
     return LocalFileSystem.Create()