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

content/shell/browser/layout_test/layout_test_permission_manager.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/browser/layout_test/layout_test_permission_manager.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 111 matching lines @@
     const GURL& requesting_origin,
     const GURL& embedding_origin) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI) ||
          BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   base::AutoLock lock(permissions_lock_);
 
   auto it = permissions_.find(
       PermissionDescription(permission, requesting_origin, embedding_origin));
   if (it == permissions_.end())
-    return PERMISSION_STATUS_DENIED;
+    return PermissionStatus::DENIED;
   return it->second;
 }
 
 void LayoutTestPermissionManager::RegisterPermissionUsage(
     PermissionType permission,
     const GURL& requesting_origin,
     const GURL& embedding_origin) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }
 
@@ skipping 71 matching lines @@
     // Add the callback to |callbacks| which will be run after the loop to
     // prevent re-entrance issues.
     callbacks.push_back(base::Bind(subscription->callback, status));
   }
 
   for (const auto& callback : callbacks)
     callback.Run();
 }
 
 }  // namespace content