Change BrowsingInstance when changing WebUI type.

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 dc76abd1ca480a5bf233dff67dadbef6122dbfe5..a05b5846ca0683ae60e9df048dcf4880fa8f5a63 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -1257,6 +1257,15 @@ bool RenderFrameHostManager::ShouldSwapBrowsingInstancesForNavigation(
             browser_context, new_effective_url)) {
       return true;
     }
+
+    // Force swap if the current WebUI type differs from the one for the
+    // destination.
+    if (WebUIControllerFactoryRegistry::GetInstance()->GetWebUIType(
+            browser_context, current_effective_url) !=
+        WebUIControllerFactoryRegistry::GetInstance()->GetWebUIType(
+            browser_context, new_effective_url)) {
+      return true;
+    }
   } else {
     // Force a swap if it's a Web UI URL.
     if (WebUIControllerFactoryRegistry::GetInstance()->UseWebUIForURL(