[Mac] Bounce app shims when app windows request attention.

apps/app_shim/extension_app_shim_handler_mac.cc

Index: apps/app_shim/extension_app_shim_handler_mac.cc
diff --git a/apps/app_shim/extension_app_shim_handler_mac.cc b/apps/app_shim/extension_app_shim_handler_mac.cc
index cef6ca2d3a6c4fdf1c312c177df502224b92aefc..9299aaff86408f13a56a23907ca6b3be4fa4142b 100644
--- a/apps/app_shim/extension_app_shim_handler_mac.cc
+++ b/apps/app_shim/extension_app_shim_handler_mac.cc
@@ -267,7 +267,7 @@ void ExtensionAppShimHandler::FocusAppForWindow(AppWindow* app_window) {
 }
 
 // static
-bool ExtensionAppShimHandler::RequestUserAttentionForWindow(
+bool ExtensionAppShimHandler::ActivateAndRequestUserAttentionForWindow(
     AppWindow* app_window) {
   ExtensionAppShimHandler* handler = GetInstance();
   Profile* profile = Profile::FromBrowserContext(app_window->browser_context());
@@ -275,7 +275,7 @@ bool ExtensionAppShimHandler::RequestUserAttentionForWindow(
   if (host) {
     // Bring the window to the front without showing it.
     AppWindowRegistry::Get(profile)->AppWindowActivated(app_window);
-    host->OnAppRequestUserAttention();
+    host->OnAppRequestUserAttention(APP_SHIM_ATTENTION_INFORMATIONAL);
     return true;
   } else {
     // Just show the app.
@@ -285,6 +285,18 @@ bool ExtensionAppShimHandler::RequestUserAttentionForWindow(
 }
 
 // static
+bool ExtensionAppShimHandler::RequestUserAttentionForWindow(
+    AppWindow* app_window,
+    AppShimAttentionType attention_type) {
+  ExtensionAppShimHandler* handler = GetInstance();
+  Profile* profile = Profile::FromBrowserContext(app_window->browser_context());
+  Host* host = handler->FindHost(profile, app_window->extension_id());
+  if (host)
+    host->OnAppRequestUserAttention(attention_type);
+  return host;
+}
+
+// static
 void ExtensionAppShimHandler::OnChromeWillHide() {
   // Send OnAppHide to all the shims so that they go into the hidden state.
   // This is necessary so that when the shim is next focused, it will know to