Introduce lock screen app context to extension features

extensions/browser/renderer_startup_helper.cc

Index: extensions/browser/renderer_startup_helper.cc
diff --git a/extensions/browser/renderer_startup_helper.cc b/extensions/browser/renderer_startup_helper.cc
index 55f6509a199e2ef7658982a326552d989d511594..da26e334bde7117e126ab3ca286d99c1a16bd5eb 100644
--- a/extensions/browser/renderer_startup_helper.cc
+++ b/extensions/browser/renderer_startup_helper.cc
@@ -103,8 +103,11 @@ void RendererStartupHelper::InitializeProcess(
   // Extensions need to know the channel and the session type for API
   // restrictions. The values are sent to all renderers, as the non-extension
   // renderers may have content scripts.
-  process->Send(new ExtensionMsg_SetSessionInfo(
-      GetCurrentChannel(), GetCurrentFeatureSessionType()));
+  bool is_lock_screen_context =
+      client->IsLockScreenContext(process->GetBrowserContext());
+  process->Send(new ExtensionMsg_SetSessionInfo(GetCurrentChannel(),
+                                                GetCurrentFeatureSessionType(),
+                                                is_lock_screen_context));
 
   // Platform apps need to know the system font.
   // TODO(dbeam): this is not the system font in all cases.