Revert 95815 - Make extension file URL access opt-in.

chrome/common/extensions/extension.h

Index: chrome/common/extensions/extension.h
===================================================================
--- chrome/common/extensions/extension.h	(revision 95819)
+++ chrome/common/extensions/extension.h	(working copy)
@@ -287,6 +287,12 @@
            location == Extension::COMPONENT;
   }
 
+  // Unpacked extensions start off with file access since they are a developer
+  // feature.
+  static inline bool ShouldAlwaysAllowFileAccess(Location location) {
+    return location == Extension::LOAD;
+  }
+
   // See Type definition above.
   Type GetType() const;