app_mode: Add runtime.onRestartRequired event.

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

Index: chrome/browser/extensions/api/runtime/runtime_api.cc
diff --git a/chrome/browser/extensions/api/runtime/runtime_api.cc b/chrome/browser/extensions/api/runtime/runtime_api.cc
index fd3a34311fc1e859cffea56dbc4f6497de9be92a..4b377aa35f9a3ae060d9083c13c13df866f31148 100644
--- a/chrome/browser/extensions/api/runtime/runtime_api.cc
+++ b/chrome/browser/extensions/api/runtime/runtime_api.cc
@@ -4,7 +4,11 @@
 
 #include "chrome/browser/extensions/api/runtime/runtime_api.h"
 
+#include <utility>
+
+#include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/event_router.h"
 #include "chrome/browser/extensions/extension_host.h"
@@ -36,6 +40,7 @@ const char kOnInstalledEvent[] = "runtime.onInstalled";
 const char kOnUpdateAvailableEvent[] = "runtime.onUpdateAvailable";
 const char kOnBrowserUpdateAvailableEvent[] =
     "runtime.onBrowserUpdateAvailable";
+const char kOnRestartRequiredEvent[] = "runtime.onRestartRequired";
 const char kNoBackgroundPageError[] = "You do not have a background page.";
 const char kPageLoadError[] = "Background page failed to load.";
 const char kInstallReason[] = "reason";
@@ -44,6 +49,9 @@ const char kInstallReasonUpdate[] = "update";
 const char kInstallReasonInstall[] = "install";
 const char kInstallPreviousVersion[] = "previousVersion";
 const char kInvalidUrlError[] = "Invalid URL.";
+const char kRestartReasonAppUpdate[] = "app_update";
+const char kRestartReasonOsUpdate[] = "os_update";
+const char kRestartReasonPeriodic[] = "periodic";
 const char kUpdatesDisabledError[] = "Autoupdate is not enabled.";
 const char kUpdateFound[] = "update_available";
 const char kUpdateNotFound[] = "no_update";
@@ -182,8 +190,38 @@ void RuntimeEventRouter::DispatchOnBrowserUpdateAvailableEvent(
 }
 
 // static
+void RuntimeEventRouter::DispatchOnRestartRequiredEvent(
+    Profile* profile,
+    const std::string& app_id,
+    RestartReason reason) {
+  ExtensionSystem* system = ExtensionSystem::Get(profile);
+  if (!system)
+    return;
+
+  scoped_ptr<ListValue> args(new ListValue);
+  switch (reason) {
+    case RESTART_REASON_APP_UPDATE:
+      args->AppendString(kRestartReasonAppUpdate);
+      break;
+    case RESTART_REASON_OS_UPDATE:
+      args->AppendString(kRestartReasonOsUpdate);
+      break;
+    case RESTART_REASON_PERIODIC:
+      args->AppendString(kRestartReasonPeriodic);
+      break;
+    default:
+      NOTREACHED() << "Unknown restart reason=" << reason;
+      return;
+  }
+
+  DCHECK(system->event_router());
+  scoped_ptr<Event> event(new Event(kOnRestartRequiredEvent, args.Pass()));
+  system->event_router()->DispatchEventToExtension(app_id, event.Pass());
+}
+
+// static
 void RuntimeEventRouter::OnExtensionUninstalled(
-    Profile *profile,
+    Profile* profile,
     const std::string& extension_id) {
 #if defined(ENABLE_EXTENSIONS)
   GURL uninstall_url(GetUninstallUrl(ExtensionPrefs::Get(profile),