Dynamically generate a heading for Extension Docs API pages

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

Index: chrome/common/extensions/docs/server2/server_instance.py
diff --git a/chrome/common/extensions/docs/server2/server_instance.py b/chrome/common/extensions/docs/server2/server_instance.py
index 4641a0d32e008a1e8716a858293869424e918187..b1cb08ffb2cd31b1d4c6a14983b29634708254fc 100644
--- a/chrome/common/extensions/docs/server2/server_instance.py
+++ b/chrome/common/extensions/docs/server2/server_instance.py
@@ -3,7 +3,6 @@
 # found in the LICENSE file.
 
 from fnmatch import fnmatch
-import logging
 import mimetypes
 import traceback
 import os
@@ -12,8 +11,10 @@ from api_data_source import APIDataSource
 from api_list_data_source import APIListDataSource
 from appengine_url_fetcher import AppEngineUrlFetcher
 from appengine_wrappers import GetAppVersion, IsDevServer
+from availability_finder import AvailabilityFinder
 from branch_utility import BranchUtility
 from caching_file_system import CachingFileSystem
+from chrome_version_utility import ChromeVersionUtility
 from compiled_file_system import CompiledFileSystem
 from empty_dir_file_system import EmptyDirFileSystem
 from example_zipper import ExampleZipper
@@ -27,9 +28,9 @@ from path_canonicalizer import PathCanonicalizer
 from reference_resolver import ReferenceResolver
 from samples_data_source import SamplesDataSource
 from sidenav_data_source import SidenavDataSource
-from subversion_file_system import SubversionFileSystem
 import svn_constants
 from template_data_source import TemplateDataSource
+from test_file_system import TestFileSystem
 from test_object_store import TestObjectStore
 from third_party.json_schema_compiler.model import UnixName
 import url_constants
@@ -41,7 +42,8 @@ class ServerInstance(object):
                host_file_system,
                app_samples_file_system,
                static_path,
-               compiled_fs_factory):
+               compiled_fs_factory,
+               create_file_system):
     self.channel = channel
 
     self.object_store_creator = object_store_creator
@@ -52,6 +54,17 @@ class ServerInstance(object):
 
     self.compiled_host_fs_factory = compiled_fs_factory
 
+    self.chrome_version_utility = ChromeVersionUtility(
+        url_constants.OMAHA_DEV_HISTORY,
+        AppEngineUrlFetcher(),
+        object_store_creator)
+
+    self.availability_finder_factory = AvailabilityFinder.Factory(
+        self.chrome_version_utility,
+        object_store_creator,
+        self.compiled_host_fs_factory,
+        create_file_system)
+
     self.api_list_data_source_factory = APIListDataSource.Factory(
         self.compiled_host_fs_factory,
         svn_constants.API_PATH,
@@ -59,7 +72,8 @@ class ServerInstance(object):
 
     self.api_data_source_factory = APIDataSource.Factory(
         self.compiled_host_fs_factory,
-        svn_constants.API_PATH)
+        svn_constants.API_PATH,
+        self.availability_finder_factory)
 
     self.ref_resolver_factory = ReferenceResolver.Factory(
         self.api_data_source_factory,
@@ -130,7 +144,8 @@ class ServerInstance(object):
                           EmptyDirFileSystem(),
                           '/static',
                           CompiledFileSystem.Factory(file_system,
-                                                     object_store_creator))
+                                                     object_store_creator),
+                          lambda branch: file_system)
 
   @staticmethod
   def ForLocal():
@@ -138,12 +153,14 @@ class ServerInstance(object):
     object_store_creator = ObjectStoreCreator(channel,
                                               start_empty=False,
                                               store_type=TestObjectStore)
-    file_system = CachingFileSystem(LocalFileSystem.Create(),
-                                    object_store_creator)
+    def create_file_system(branch):
+      return CachingFileSystem(LocalFileSystem.Create(), object_store_creator)
+    file_system = create_file_system('trunk');
     return ServerInstance(
         channel,
         object_store_creator,
         file_system,
         EmptyDirFileSystem(),
         '/static',
-        CompiledFileSystem.Factory(file_system, object_store_creator))
+        CompiledFileSystem.Factory(file_system, object_store_creator),
+        create_file_system)