Docserver: Use GitilesFileSystem instead of SubversionFileSystem

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

Index: chrome/common/extensions/docs/server2/gitiles_file_system_test.py
diff --git a/chrome/common/extensions/docs/server2/gitiles_file_system_test.py b/chrome/common/extensions/docs/server2/gitiles_file_system_test.py
index 438a6595388b0dd062d2c259606eeb1c8675706f..e6590d4b0cc9912f38b89a616b1aa5b92510a1a7 100755
--- a/chrome/common/extensions/docs/server2/gitiles_file_system_test.py
+++ b/chrome/common/extensions/docs/server2/gitiles_file_system_test.py
@@ -65,7 +65,12 @@ class _FakeGitilesFetcher(object):
       # GitilesFS expects directory content as a JSON string.
       if 'JSON' in fmt:
         content = json.dumps({
-          'entries': [{'name': name} for name in content]
+          'entries': [
+            {
+              # GitilesFS expects directory names to not have a trailing '/'.
+              'name': name.rstrip('/'),
+              'type': 'tree' if name.endswith('/') else 'blob'
+            } for name in content]
         })
       return _Response(content)
     return Future(callback=resolve)