mash: Have chrome set itself as the app list presenter.

ash/common/wm_shell.h

Index: ash/common/wm_shell.h
diff --git a/ash/common/wm_shell.h b/ash/common/wm_shell.h
index 65ad4a224964c49766a098168225dafb75667b19..21a2a83562ead8ff3060574ac6df48cee5b98f1f 100644
--- a/ash/common/wm_shell.h
+++ b/ash/common/wm_shell.h
@@ -17,6 +17,7 @@
 #include "ash/common/wm/lock_state_observer.h"
 #include "base/observer_list.h"
 #include "components/ui_devtools/devtools_server.h"
+#include "ui/app_list/presenter/app_list.h"

[James Cook, 2016/12/10 00:50:08]

Hmm. I've been trying to avoid dependencies in wm_shell.h and shell.h for mojom
headers, since those headers are heavy and wm_shell.h is included everywhere.

Can this be forward declared?

[msw, 2016/12/10 01:08:12]

Done.

 #include "ui/base/ui_base_types.h"
 #include "ui/compositor/layer_type.h"
 #include "ui/wm/public/window_types.h"
@@ -116,6 +117,8 @@ class ASH_EXPORT WmShell {
     return accessibility_delegate_.get();
   }
 
+  app_list::AppList* app_list() { return app_list_.get(); }
+
   BrightnessControlDelegate* brightness_control_delegate() {
     return brightness_control_delegate_.get();
   }
@@ -478,6 +481,7 @@ class ASH_EXPORT WmShell {
 
   std::unique_ptr<AcceleratorController> accelerator_controller_;
   std::unique_ptr<AccessibilityDelegate> accessibility_delegate_;
+  std::unique_ptr<app_list::AppList> app_list_;
   std::unique_ptr<BrightnessControlDelegate> brightness_control_delegate_;
   std::unique_ptr<CastConfigController> cast_config_;
   std::unique_ptr<FocusCycler> focus_cycler_;