Make Document::isSecureContext() work for OOPIFs

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 3b619f154c6fca9d60b09d3a99f30145ba36c663..ce5860d5956bb4273674f7d7071a5227973be8f9 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -545,6 +545,8 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeName, OnDidChangeName)
     IPC_MESSAGE_HANDLER(FrameHostMsg_EnforceStrictMixedContentChecking,
                         OnEnforceStrictMixedContentChecking)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_SetUniqueOriginPotentiallyTrustworthy,
+                        OnSetUniqueOriginPotentiallyTrustworthy)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidAssignPageId, OnDidAssignPageId)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeSandboxFlags,
                         OnDidChangeSandboxFlags)
@@ -1475,6 +1477,10 @@ void RenderFrameHostImpl::OnEnforceStrictMixedContentChecking() {
   frame_tree_node()->SetEnforceStrictMixedContentChecking(true);
 }
 
+void RenderFrameHostImpl::OnSetUniqueOriginPotentiallyTrustworthy() {
+  frame_tree_node()->SetUniqueOriginPotentiallyTrustworthy(true);
+}
+
 void RenderFrameHostImpl::OnDidAssignPageId(int32_t page_id) {
   // Update the RVH's current page ID so that future IPCs from the renderer
   // correspond to the new page.