Plumb document's strict mixed content checking for RemoteFrames

content/browser/frame_host/render_frame_host_manager.cc

Index: content/browser/frame_host/render_frame_host_manager.cc
diff --git a/content/browser/frame_host/render_frame_host_manager.cc b/content/browser/frame_host/render_frame_host_manager.cc
index f2ea2b299d3eba5dae49e59f56e67d5aad973716..2d778a623a0ef8d385fa7512181b50fdaf744c22 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -672,6 +672,9 @@ void RenderFrameHostManager::DidNavigateFrame(
   // Make sure any dynamic changes to this frame's sandbox flags that were made
   // prior to navigation take effect.
   CommitPendingSandboxFlags();
+
+  // Reset enforcement of strict mixed content checking.
+  frame_tree_node_->SetShouldEnforceStrictMixedContentChecking(false);
 }
 
 void RenderFrameHostManager::CommitPendingIfNecessary(
@@ -1149,6 +1152,15 @@ void RenderFrameHostManager::OnDidUpdateName(const std::string& name) {
   }
 }
 
+void RenderFrameHostManager::OnDidUpdateShouldEnforceStrictMixedContentChecking(
+    bool should_enforce) {
+  for (const auto& pair : *proxy_hosts_) {
+    pair.second->Send(
+        new FrameMsg_DidUpdateShouldEnforceStrictMixedContentChecking(
+            pair.second->GetRoutingID(), should_enforce));
+  }
+}
+
 void RenderFrameHostManager::OnDidUpdateOrigin(const url::Origin& origin) {
   if (!SiteIsolationPolicy::IsSwappedOutStateForbidden())
     return;