Change mojo enums to be scoped enums in the generated C++ bindings.

chromecast/browser/cast_permission_manager.cc

Index: chromecast/browser/cast_permission_manager.cc
diff --git a/chromecast/browser/cast_permission_manager.cc b/chromecast/browser/cast_permission_manager.cc
index d8cf3cb7621c3f2b316460df5ea98c308444d9e7..0595f358849de49512be8b2acdbadc41a94ab255 100644
--- a/chromecast/browser/cast_permission_manager.cc
+++ b/chromecast/browser/cast_permission_manager.cc
@@ -25,7 +25,7 @@ int CastPermissionManager::RequestPermission(
     bool user_gesture,
     const base::Callback<void(content::PermissionStatus)>& callback) {
   LOG(INFO) << __FUNCTION__ << ": " << static_cast<int>(permission);
-  callback.Run(content::PermissionStatus::PERMISSION_STATUS_GRANTED);
+  callback.Run(content::PermissionStatus::GRANTED);
   return kNoPendingOperation;
 }
 
@@ -36,8 +36,8 @@ int CastPermissionManager::RequestPermissions(
     bool user_gesture,
     const base::Callback<void(
         const std::vector<content::PermissionStatus>&)>& callback) {
-  callback.Run(std::vector<content::PermissionStatus>(permissions.size(),
-      content::PermissionStatus::PERMISSION_STATUS_GRANTED));
+  callback.Run(std::vector<content::PermissionStatus>(
+      permissions.size(), content::PermissionStatus::GRANTED));
   return kNoPendingOperation;
 }
 
@@ -55,7 +55,7 @@ content::PermissionStatus CastPermissionManager::GetPermissionStatus(
     const GURL& requesting_origin,
     const GURL& embedding_origin) {
   LOG(INFO) << __FUNCTION__ << ": " << static_cast<int>(permission);
-  return content::PermissionStatus::PERMISSION_STATUS_GRANTED;
+  return content::PermissionStatus::GRANTED;
 }
 
 void CastPermissionManager::RegisterPermissionUsage(