Use rvalue reference instead of extensions::DictionaryBuilder::pass()

C++ 11 enables rvalue reference with std::move() so that removing DictionaryBuilder::Pass().

BUG=563649
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Review URL: https://codereview.chromium.org/1532193003

Cr-Commit-Position: refs/heads/master@{#366280}
diff --git a/chrome/browser/extensions/extension_action_test_util.cc b/chrome/browser/extensions/extension_action_test_util.cc
index 1a9de97..b860331 100644
--- a/chrome/browser/extensions/extension_action_test_util.cc
+++ b/chrome/browser/extensions/extension_action_test_util.cc
@@ -150,12 +150,13 @@
   }
 
   if (action_key)
-    manifest.Set(action_key, DictionaryBuilder().Pass());
+    manifest.Set(action_key, DictionaryBuilder());
 
-  return ExtensionBuilder().SetManifest(manifest.Pass()).
-                            SetID(crx_file::id_util::GenerateId(name)).
-                            SetLocation(location).
-                            Build();
+  return ExtensionBuilder()
+      .SetManifest(std::move(manifest))
+      .SetID(crx_file::id_util::GenerateId(name))
+      .SetLocation(location)
+      .Build();
 }
 
 ToolbarActionsModel* CreateToolbarModelForProfile(Profile* profile) {