Extensions: Remove PermissionMessage (permission_message.h/cc)

extensions/test/test_extensions_client.h

Index: extensions/test/test_extensions_client.h
diff --git a/extensions/test/test_extensions_client.h b/extensions/test/test_extensions_client.h
index 209a08ad551dbe44c3748a57ff99c2b0bce54ca1..cce385466de639ae7cbce5bfa622de528c876d0c 100644
--- a/extensions/test/test_extensions_client.h
+++ b/extensions/test/test_extensions_client.h
@@ -35,10 +35,6 @@ class TestExtensionsClient : public ExtensionsClient {
       const std::string& name) const override;
   scoped_ptr<JSONFeatureProviderSource> CreateFeatureProviderSource(
       const std::string& name) const override;
-  void FilterHostPermissions(
-      const URLPatternSet& hosts,
-      URLPatternSet* new_hosts,
-      std::set<PermissionMessage>* messages) const override;
   void FilterHostPermissions(const URLPatternSet& hosts,
                              URLPatternSet* new_hosts,
                              PermissionIDSet* permissions) const override;