app_mode: Add runtime.onRestartRequired event.

chrome/browser/extensions/api/runtime/runtime_api.h

Index: chrome/browser/extensions/api/runtime/runtime_api.h
diff --git a/chrome/browser/extensions/api/runtime/runtime_api.h b/chrome/browser/extensions/api/runtime/runtime_api.h
index 4baa2f4c61f6bb119b458aa163a3d7b02c53730b..b9e50c9deb178e14237ae7096e925c8fe41fac45 100644
--- a/chrome/browser/extensions/api/runtime/runtime_api.h
+++ b/chrome/browser/extensions/api/runtime/runtime_api.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_EXTENSIONS_API_RUNTIME_RUNTIME_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_RUNTIME_RUNTIME_API_H_
 
+#include <string>
+
 #include "chrome/browser/extensions/extension_function.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -21,6 +23,13 @@ class ExtensionHost;
 
 class RuntimeEventRouter {
  public:
+  enum RestartReason {
+    RESTART_REASON_UNKNOWN,
+    RESTART_REASON_APP_UPDATE,
+    RESTART_REASON_OS_UPDATE,
+    RESTART_REASON_PERIODIC,
+  };
+
   // Dispatches the onStartup event to all currently-loaded extensions.
   static void DispatchOnStartupEvent(Profile* profile,
                                      const std::string& extension_id);
@@ -40,6 +49,11 @@ class RuntimeEventRouter {
   // Dispatches the onBrowserUpdateAvailable event to all extensions.
   static void DispatchOnBrowserUpdateAvailableEvent(Profile* profile);
 
+  // Dispatches the onRestartRequired event to the given app.
+  static void DispatchOnRestartRequiredEvent(Profile* profile,
+                                             const std::string& app_id,
+                                             RestartReason reason);
+
   // Does any work needed at extension uninstall (e.g. load uninstall url).
   static void OnExtensionUninstalled(Profile* profile,
                                      const std::string& extension_id);