arc: Prevent showing Arc app window for secondary user profile.

components/exo/shell_surface.h

Index: components/exo/shell_surface.h
diff --git a/components/exo/shell_surface.h b/components/exo/shell_surface.h
index 1c7e3072d1045684ff0c92d207664547205a4651..74da06a295ad057890fcbc20cf3acf716840533b 100644
--- a/components/exo/shell_surface.h
+++ b/components/exo/shell_surface.h
@@ -127,6 +127,13 @@ class ShellSurface : public SurfaceDelegate,
                                std::string* application_id);
   static const std::string GetApplicationId(aura::Window* window);
 
+  // Returns true if |key| specifies property for window ready state. It is used
+  // to filter out property changed events.
+  static bool IsApplicationWindowReadyPropertyKey(const void* key);
+
+  // Returns true if the window is an Arc app window and it is ready to show.
+  static bool IsApplicationWindowReadyToShow(aura::Window* window);
+
   // Set application id for surface.
   void SetApplicationId(const std::string& application_id);