Start app shim when app launched.

chrome/browser/ui/app_list/app_list_service_mac.mm

Index: chrome/browser/ui/app_list/app_list_service_mac.mm
diff --git a/chrome/browser/ui/app_list/app_list_service_mac.mm b/chrome/browser/ui/app_list/app_list_service_mac.mm
index 3a45759192ba84773b076c36e05fb26061f19826..4825a4a1a679f899dd127e8725f3ff4018ebf6fb 100644
--- a/chrome/browser/ui/app_list/app_list_service_mac.mm
+++ b/chrome/browser/ui/app_list/app_list_service_mac.mm
@@ -61,7 +61,8 @@ class AppListServiceMac : public AppListServiceImpl,
   virtual void EnableAppList() OVERRIDE;
 
   // AppShimHandler overrides:
-  virtual bool OnShimLaunch(apps::AppShimHandler::Host* host) OVERRIDE;
+  virtual bool OnShimLaunch(apps::AppShimHandler::Host* host,
+                            bool launch_now) OVERRIDE;
   virtual void OnShimClose(apps::AppShimHandler::Host* host) OVERRIDE;
   virtual void OnShimFocus(apps::AppShimHandler::Host* host) OVERRIDE;
 
@@ -271,7 +272,8 @@ NSWindow* AppListServiceMac::GetNativeWindow() {
   return [window_controller_ window];
 }
 
-bool AppListServiceMac::OnShimLaunch(apps::AppShimHandler::Host* host) {
+bool AppListServiceMac::OnShimLaunch(apps::AppShimHandler::Host* host,
+                                     bool launch_now) {

[tapted, 2013/05/29 04:20:30]

I've noticed the app list will need some logic added here. E.g., when the app
list is re-shown after switching profiles (or displayed after an extension
install), it will also want to start its shim. Otherwise, clicking the icon
again doesn't hide it.

Let's leave more for a follow-up though.

   ShowForSavedProfile();
   observers_.AddObserver(host);
   return true;