Dynamically generate a heading for Extension Docs API pages

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

Index: chrome/common/extensions/docs/server2/compiled_file_system.py
diff --git a/chrome/common/extensions/docs/server2/compiled_file_system.py b/chrome/common/extensions/docs/server2/compiled_file_system.py
index 051572b130102728b49a61515fb91c7890738733..8fdc70345d98be15c4553500ea83b0300f2cc7ae 100644
--- a/chrome/common/extensions/docs/server2/compiled_file_system.py
+++ b/chrome/common/extensions/docs/server2/compiled_file_system.py
@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import logging
+
 class _CacheEntry(object):
   def __init__(self, cache_data, version):
     self._cache_data = cache_data
@@ -92,11 +94,17 @@ class CompiledFileSystem(object):
     cache_entry = self._file_object_store.Get(path, time=0).Get()
     if (cache_entry is not None) and (version == cache_entry.version):
       return cache_entry._cache_data
-    cache_data = self._populate_function(
-        path,
-        self._file_system.ReadSingle(path, binary=binary))
-    self._file_object_store.Set(path, _CacheEntry(cache_data, version), time=0)
-    return cache_data
+    try:
+      cache_data = self._populate_function(
+          path,
+          self._file_system.ReadSingle(path, binary=binary))
+      self._file_object_store.Set(path,
+                                  _CacheEntry(cache_data, version),
+                                  time=0)
+      return cache_data
+    except ValueError as e:
+      logging.error('Could not get data for the file at %s: %s' % (path, e))
+      return None
 
   def GetFromFileListing(self, path):
     """Calls |populate_function| on the listing of the files at |path|.