Docserver: Serve docs out of src/ not src/chrome/common/extensions. This allows

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

Index: chrome/common/extensions/docs/server2/permissions_data_source_test.py
diff --git a/chrome/common/extensions/docs/server2/permissions_data_source_test.py b/chrome/common/extensions/docs/server2/permissions_data_source_test.py
index 8c34da4989868b4dcd3219a9e0aa1e616a915db9..a14bdea60f6958458d78dded97d28c9f871f8165 100755
--- a/chrome/common/extensions/docs/server2/permissions_data_source_test.py
+++ b/chrome/common/extensions/docs/server2/permissions_data_source_test.py
@@ -9,6 +9,7 @@ from operator import itemgetter
 import unittest
 
 from compiled_file_system import CompiledFileSystem
+from extensions_paths import EXTENSIONS
 from object_store_creator import ObjectStoreCreator
 from permissions_data_source import PermissionsDataSource
 from server_instance import ServerInstance
@@ -146,7 +147,7 @@ class PermissionsDataSourceTest(unittest.TestCase):
           },
         }
       }
-    })
+    }, relative_to=EXTENSIONS)
 
     permissions_data_source = PermissionsDataSource(
         ServerInstance.ForTest(test_file_system), None)
@@ -170,5 +171,6 @@ class PermissionsDataSourceTest(unittest.TestCase):
     self.assertEqual(expected_extensions, actual_extensions)
     self.assertEqual(expected_apps, actual_apps)
 
+
 if __name__ == '__main__':
   unittest.main()