Make Document::isSecureContext() work for OOPIFs

content/renderer/render_frame_proxy.cc

Index: content/renderer/render_frame_proxy.cc
diff --git a/content/renderer/render_frame_proxy.cc b/content/renderer/render_frame_proxy.cc
index d31dab2b826db77a1a7ec6217f4b896a9db97bd6..8f850941cf76d28c70454b186fc4c07579f8fa83 100644
--- a/content/renderer/render_frame_proxy.cc
+++ b/content/renderer/render_frame_proxy.cc
@@ -229,6 +229,8 @@ void RenderFrameProxy::SetReplicatedState(const FrameReplicationState& state) {
                                 blink::WebString::fromUTF8(state.unique_name));
   web_frame_->setReplicatedShouldEnforceStrictMixedContentChecking(
       state.should_enforce_strict_mixed_content_checking);
+  web_frame_->setReplicatedPotentiallyTrustworthyUniqueOrigin(
+      state.has_potentially_trustworthy_unique_origin);
 }
 
 // Update the proxy's SecurityContext and FrameOwner with new sandbox flags
@@ -366,8 +368,12 @@ void RenderFrameProxy::OnEnforceStrictMixedContentChecking(
       should_enforce);
 }
 
-void RenderFrameProxy::OnDidUpdateOrigin(const url::Origin& origin) {
+void RenderFrameProxy::OnDidUpdateOrigin(
+    const url::Origin& origin,
+    bool is_potentially_trustworthy_unique_origin) {
   web_frame_->setReplicatedOrigin(origin);
+  web_frame_->setReplicatedPotentiallyTrustworthyUniqueOrigin(
+      is_potentially_trustworthy_unique_origin);
 }
 
 void RenderFrameProxy::OnSetPageFocus(bool is_focused) {