Don't hold the installed app in BrowserProcessRenderHost, since that's in content layer now. Ext...

chrome/browser/sidebar/sidebar_container.cc

Index: chrome/browser/sidebar/sidebar_container.cc
===================================================================
--- chrome/browser/sidebar/sidebar_container.cc	(revision 82344)
+++ chrome/browser/sidebar/sidebar_container.cc	(working copy)
@@ -35,9 +35,11 @@
   sidebar_contents_->render_view_host()->set_is_extension_process(true);
   const Extension* extension = GetExtension();
   if (extension && extension->is_app()) {
-    BrowserRenderProcessHost* process = static_cast<BrowserRenderProcessHost*>(
-        sidebar_contents_->render_view_host()->process());
-    process->set_installed_app(extension);
+    ExtensionService* service = tab->profile()->GetExtensionService();
+    if (service) {
+      service->SetInstalledAppForRenderer(
+          extension, sidebar_contents_->render_view_host()->process()->id());
+    }
   }
   sidebar_contents_->render_view_host()->AllowBindings(
       BindingsPolicy::EXTENSION);