JS dialogs for athena

athena/extensions/extensions_delegate.cc

Index: athena/extensions/extensions_delegate.cc
diff --git a/athena/extensions/extensions_delegate.cc b/athena/extensions/extensions_delegate.cc
index a5c39b91628c85661bed7eea662aaae7e471c6f8..00a93b96d990e585df76e9ad5a9a696cc38d9dc0 100644
--- a/athena/extensions/extensions_delegate.cc
+++ b/athena/extensions/extensions_delegate.cc
@@ -4,7 +4,10 @@
 
 #include "athena/extensions/public/extensions_delegate.h"
 
+#include "athena/extensions/athena_constrained_window_views_client.h"
+#include "athena/extensions/athena_javascript_native_dialog_factory.h"
 #include "base/logging.h"
+#include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 
 namespace athena {
 namespace {
@@ -14,11 +17,15 @@ ExtensionsDelegate* instance = nullptr;
 }  // namespace
 
 ExtensionsDelegate::ExtensionsDelegate() {
+  InstallConstrainedWindowViewsClient();
+  InstallJavaScriptDialogExtensionsClient();
+  InstallJavaScriptNativeDialogFactory();
   DCHECK(!instance);
   instance = this;
 }
 
 ExtensionsDelegate::~ExtensionsDelegate() {
+  UninstallConstrainedWindowViewsClient();
   DCHECK(instance);
   instance = nullptr;
 }