diff --git a/chrome/browser/storage_access_api/storage_access_grant_permission_context.cc b/chrome/browser/storage_access_api/storage_access_grant_permission_context.cc
index 3f31f0d867412..77488c32bc991 100644
--- a/chrome/browser/storage_access_api/storage_access_grant_permission_context.cc
+++ b/chrome/browser/storage_access_api/storage_access_grant_permission_context.cc
@@ -301,6 +301,10 @@ void StorageAccessGrantPermissionContext::DecidePermission(
   const url::Origin embedding_origin =
       url::Origin::Create(request_data->embedding_origin);
 
+  // POC instrumentation: log whenever the compromised-renderer gate is
+  // actually evaluated.
+  LOG(ERROR) << "[POC] DecidePermission gate evaluated: IsCredentialless="
+             << rfh->IsCredentialless();
   if (rfh->GetLastCommittedOrigin().opaque() || rfh->IsCredentialless() ||
       rfh->IsNestedWithinFencedFrame() ||
       rfh->IsSandboxed(
diff --git a/content/browser/renderer_host/render_frame_host_impl.cc b/content/browser/renderer_host/render_frame_host_impl.cc
index 75b89a4a387a7..17c69f9f35a4c 100644
--- a/content/browser/renderer_host/render_frame_host_impl.cc
+++ b/content/browser/renderer_host/render_frame_host_impl.cc
@@ -8475,6 +8475,15 @@ void RenderFrameHostImpl::NotifyFirstContentfulPaint() {
 
 void RenderFrameHostImpl::SetStorageAccessApiStatus(
     net::StorageAccessApiStatus status) {
+  // POC instrumentation: surface when the browser-authoritative
+  // kStorageAccessGrantEligible bit is being set on a credentialless /
+  // nonce-partitioned RFH.
+  LOG(ERROR) << "[POC] SetStorageAccessApiStatus(" << static_cast<int>(status)
+             << ") on RFH " << GetGlobalId()
+             << " IsCredentialless=" << IsCredentialless()
+             << " ForbidsUnpartitioned="
+             << GetStorageKey().ForbidsUnpartitionedStorageAccess()
+             << " origin=" << GetLastCommittedOrigin();
   switch (status) {
     case net::StorageAccessApiStatus::kNone:
       document_associated_data_->RemoveCookieSettingOverride(
diff --git a/ui/views/win/OWNERS b/ui/views/win/OWNERS
index af1b18e77e424..4d819f1c13eaa 100644
--- a/ui/views/win/OWNERS
+++ b/ui/views/win/OWNERS
@@ -1,2 +1,2 @@
-davidbienvenu@chromium.org
+davidbienvenu@chromium.org
 jessemckenna@google.com
\ No newline at end of file