Allow manifest handlers to declare keys they depend on that must be parsed before them.

chrome/browser/intents/web_intents_registry_unittest.cc

Index: chrome/browser/intents/web_intents_registry_unittest.cc
diff --git a/chrome/browser/intents/web_intents_registry_unittest.cc b/chrome/browser/intents/web_intents_registry_unittest.cc
index d2738cd444abf48a401f71cb84db16999ec559b3..045de49011baa57e9abf791542819973a109f6fa 100644
--- a/chrome/browser/intents/web_intents_registry_unittest.cc
+++ b/chrome/browser/intents/web_intents_registry_unittest.cc
@@ -103,8 +103,9 @@ class WebIntentsRegistryTest : public testing::Test {
     EXPECT_CALL(extension_service_, GetExtensionById(testing::_, testing::_)).
         WillRepeatedly(
             testing::Invoke(this, &WebIntentsRegistryTest::GetExtensionById));
-    extensions::ManifestHandler::Register(extension_manifest_keys::kIntents,
-                                          new extensions::WebIntentsHandler);
+    extensions::ManifestHandler::Register(
+        extension_manifest_keys::kIntents,
+        make_linked_ptr(new extensions::WebIntentsHandler));
   }
 
   virtual void TearDown() {