gpu: Add sync token dependencies to flush metadata.

cc/raster/one_copy_raster_buffer_provider.cc

Index: cc/raster/one_copy_raster_buffer_provider.cc
diff --git a/cc/raster/one_copy_raster_buffer_provider.cc b/cc/raster/one_copy_raster_buffer_provider.cc
index 18dc44cdc9408a9fca3a1435f658feab03d2d7a4..355cb27ffd2e1e4c39690cfb895fd075929c771c 100644
--- a/cc/raster/one_copy_raster_buffer_provider.cc
+++ b/cc/raster/one_copy_raster_buffer_provider.cc
@@ -173,8 +173,8 @@ bool OneCopyRasterBufferProvider::IsResourceReadyToDraw(
   if (!sync_token.HasData())
     return true;
 
-  // IsSyncTokenSignalled is threadsafe, no need for worker context lock.
-  return worker_context_provider_->ContextSupport()->IsSyncTokenSignalled(
+  // IsSyncTokenSignaled is thread-safe, no need for worker context lock.
+  return worker_context_provider_->ContextSupport()->IsSyncTokenSignaled(
       sync_token);
 }