Parse manifest file with app.service_worker.script.

extensions/common/manifest_constants.cc

Index: extensions/common/manifest_constants.cc
diff --git a/extensions/common/manifest_constants.cc b/extensions/common/manifest_constants.cc
index f7bf1f4bc58637d0228ad8d01688d84d51a0738e..8b36cd0bb18f08db2e2bbe18a5f738c54afa30e8 100644
--- a/extensions/common/manifest_constants.cc
+++ b/extensions/common/manifest_constants.cc
@@ -106,6 +106,8 @@ const char kPlatformAppBackground[] = "app.background";
 const char kPlatformAppBackgroundPage[] = "app.background.page";
 const char kPlatformAppBackgroundScripts[] = "app.background.scripts";
 const char kPlatformAppContentSecurityPolicy[] = "app.content_security_policy";
+const char kPlatformAppServiceWorker[] = "app.service_worker";
+const char kPlatformAppServiceWorkerScript[] = "app.service_worker.script";
 const char kPlugins[] = "plugins";
 const char kPluginsPath[] = "path";
 const char kPluginsPublic[] = "public";
@@ -554,6 +556,8 @@ const char kInvalidScriptBadge[] =
     "Invalid value for 'script_badge'.";
 const char kInvalidSearchEngineURL[] =
     "Invalid URL [*] for 'chrome_settings_overrides.search_provider'.";
+const char kInvalidServiceWorkerScript[] =
+    "Invalid value for 'service_worker.script'.";
 const char kInvalidEmptySettingsOverrides[] =
     "Empty dictionary for 'chrome_settings_overrides'.";
 const char kInvalidShortName[] =
@@ -696,6 +700,9 @@ const char kScriptBadgeIconIgnored[] =
 const char kScriptBadgeTitleIgnored[] =
     "default_title specified in script_badge manifest section will not be "
     "used.";
+const char kServiceWorkerRequiresFlag[] =
+    "Service worker features require --enable-service-worker command-line "
+    "flag.";
 const char kUnrecognizedManifestKey[] = "Unrecognized manifest key '*'.";
 const char kUnrecognizedManifestProperty[] =
     "Unrecognized property '*' of manifest key '*'.";