Enforce constant size and device scale factor for surfaces

content/browser/renderer_host/delegated_frame_host.cc

Index: content/browser/renderer_host/delegated_frame_host.cc
diff --git a/content/browser/renderer_host/delegated_frame_host.cc b/content/browser/renderer_host/delegated_frame_host.cc
index db6020d1f70c0dd3462cc5dc0f49f01bcda53ea9..6369e837ff247c1ee3c25a5fc6fcd9a5a5c97b07 100644
--- a/content/browser/renderer_host/delegated_frame_host.cc
+++ b/content/browser/renderer_host/delegated_frame_host.cc
@@ -456,7 +456,9 @@ void DelegatedFrameHost::SubmitCompositorFrame(
                                        skipped_latency_info_list_.end());
     skipped_latency_info_list_.clear();
 
-    support_->SubmitCompositorFrame(local_surface_id, std::move(frame));
+    bool result =
+        support_->SubmitCompositorFrame(local_surface_id, std::move(frame));
+    DCHECK(result);
 
     if (local_surface_id != local_surface_id_ || !has_frame_) {
       // manager must outlive compositors using it.