Modified old wait sync point functions to also accept new sync tokens.

content/browser/compositor/owned_mailbox.h

Index: content/browser/compositor/owned_mailbox.h
diff --git a/content/browser/compositor/owned_mailbox.h b/content/browser/compositor/owned_mailbox.h
index c8868148f4d8cfcfc3ce5c77b48cb6e3b8f24497..07aac97bf313cf2d245f536f4650b681931d441a 100644
--- a/content/browser/compositor/owned_mailbox.h
+++ b/content/browser/compositor/owned_mailbox.h
@@ -24,10 +24,12 @@ class CONTENT_EXPORT OwnedMailbox : public base::RefCounted<OwnedMailbox>,
 
   const gpu::MailboxHolder& holder() const { return mailbox_holder_; }
   const gpu::Mailbox& mailbox() const { return mailbox_holder_.mailbox; }
+  const gpu::SyncToken& sync_token() const {
+    return mailbox_holder_.sync_token;
+  }
   uint32 texture_id() const { return texture_id_; }
   uint32 target() const { return mailbox_holder_.texture_target; }
-  uint32 sync_point() const { return mailbox_holder_.sync_point; }
-  void UpdateSyncPoint(uint32 sync_point);
+  void UpdateSyncToken(const gpu::SyncToken& sync_token);
   void Destroy();
 
  protected: