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

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

Index: chrome/common/extensions/docs/server2/features_bundle_test.py
diff --git a/chrome/common/extensions/docs/server2/features_bundle_test.py b/chrome/common/extensions/docs/server2/features_bundle_test.py
index fb9cbafc25f54350e4ff61eceb71762c0eec3ef0..50767975bc1ae25f4024e0185a990181d1544b71 100755
--- a/chrome/common/extensions/docs/server2/features_bundle_test.py
+++ b/chrome/common/extensions/docs/server2/features_bundle_test.py
@@ -6,9 +6,11 @@
 import json
 import unittest
 
+from extensions_paths import EXTENSIONS
 from server_instance import ServerInstance
 from test_file_system import TestFileSystem
 
+
 _TEST_FILESYSTEM = {
   'api': {
     '_api_features.json': json.dumps({
@@ -132,9 +134,11 @@ _TEST_FILESYSTEM = {
   }
 }
 
+
 class FeaturesBundleTest(unittest.TestCase):
   def setUp(self):
-    self._server = ServerInstance.ForTest(TestFileSystem(_TEST_FILESYSTEM))
+    self._server = ServerInstance.ForTest(
+        TestFileSystem(_TEST_FILESYSTEM, relative_to=EXTENSIONS))
 
   def testManifestFeatures(self):
     expected_features = {
@@ -256,5 +260,6 @@ class FeaturesBundleTest(unittest.TestCase):
         expected_features,
         self._server.features_bundle.GetAPIFeatures().Get())
 
+
 if __name__ == '__main__':
   unittest.main()