Parse manifest file with app.service_worker.script.

chrome/common/extensions/manifest_unittest.cc

Index: chrome/common/extensions/manifest_unittest.cc
diff --git a/chrome/common/extensions/manifest_unittest.cc b/chrome/common/extensions/manifest_unittest.cc
index cd6bb03beaf81567bb21e1914826971c06dc3d41..6ed26e8e8b0418a827e8db5c9f4aa5a9381cb80a 100644
--- a/chrome/common/extensions/manifest_unittest.cc
+++ b/chrome/common/extensions/manifest_unittest.cc
@@ -152,13 +152,19 @@ TEST_F(ManifestTest, ExtensionTypes) {
       &manifest, keys::kApp, new base::DictionaryValue());
   AssertType(manifest.get(), Manifest::TYPE_LEGACY_PACKAGED_APP);
 
-  // Platform app.
+  // Platform app with event page.
   MutateManifest(
       &manifest, keys::kPlatformAppBackground, new base::DictionaryValue());
   AssertType(manifest.get(), Manifest::TYPE_PLATFORM_APP);
   MutateManifest(
       &manifest, keys::kPlatformAppBackground, NULL);
 
+  // Platform app with service worker.
+  MutateManifest(
+      &manifest, keys::kPlatformAppServiceWorker, new base::DictionaryValue());
+  AssertType(manifest.get(), Manifest::TYPE_PLATFORM_APP);
+  MutateManifest(&manifest, keys::kPlatformAppServiceWorker, NULL);
+
   // Hosted app.
   MutateManifest(
       &manifest, keys::kWebURLs, new base::ListValue());