Start app shim when app launched.

chrome/browser/ui/app_list/app_list_service_mac.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "apps/app_shim/app_shim_handler_mac.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_nsobject.h"
@@ skipping 43 matching lines @@
   void ShowWindowNearDock();
 
   // AppListService overrides:
   virtual void Init(Profile* initial_profile) OVERRIDE;
   virtual void ShowAppList(Profile* requested_profile) OVERRIDE;
   virtual void DismissAppList() OVERRIDE;
   virtual bool IsAppListVisible() const OVERRIDE;
   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;
 
  private:
   friend struct DefaultSingletonTraits<AppListServiceMac>;
 
   AppListServiceMac() {}
 
   scoped_nsobject<AppListWindowController> window_controller_;
 
@@ skipping 189 matching lines @@
 }
 
 void AppListServiceMac::EnableAppList() {
   // TODO(tapted): Implement enable logic here for OSX.
 }
 
 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;
 }
 
 void AppListServiceMac::OnShimClose(apps::AppShimHandler::Host* host) {
   observers_.RemoveObserver(host);
   DismissAppList();
 }
 
@@ skipping 80 matching lines @@
 
 // static
 AppListService* AppListService::Get() {
   return AppListServiceMac::GetInstance();
 }
 
 // static
 void AppListService::InitAll(Profile* initial_profile) {
   Get()->Init(initial_profile);
 }