Consolidate manifest handler registration.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 7b21e9c1e036a5661adae5dbab0197081e230278..698ea212e96dbb12b2a4592842dbf4443a1284f4 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -71,6 +71,7 @@
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/extensions/chrome_manifest_handlers.h"
 #include "chrome/common/extensions/extension_l10n_util.h"
 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
 #include "chrome/common/extensions/permissions/permissions_info.h"
@@ -198,6 +199,7 @@ BrowserProcessImpl::BrowserProcessImpl(
 
   extensions::PermissionsInfo::GetInstance()->InitializeWithDelegate(
       extensions::ChromeAPIPermissions());
+  extensions::RegisterChromeManifestHandlers();
   extension_event_router_forwarder_ = new extensions::EventRouterForwarder;
   ExtensionRendererState::GetInstance()->Init();