Makes views be initially hidden

mojo/services/public/cpp/view_manager/view.h

 // Copyright 2014 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.
 
 #ifndef MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_
 #define MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 17 matching lines @@
 struct ViewProperty;
 
 // Views are owned by the ViewManager.
 // TODO(beng): Right now, you'll have to implement a ViewObserver to track
 //             destruction and NULL any pointers you have.
 //             Investigate some kind of smart pointer or weak pointer for these.
 class View {
  public:
   using Children = std::vector<View*>;
 
+  // Creates and returns a new View (which is owned by the ViewManager). Views
+  // are initially hidden, use SetVisible(true) to show.
   static View* Create(ViewManager* view_manager);
 
   // Destroys this view and all its children.
   void Destroy();
 
   ViewManager* view_manager() { return manager_; }
 
   // Configuration.
   Id id() const { return id_; }
 
   // Geometric disposition.
   const Rect& bounds() const { return bounds_; }
   void SetBounds(const Rect& bounds);
 
-  // Visibility (also see IsDrawn()).
+  // Visibility (also see IsDrawn()). When created views are hidden.
   bool visible() const { return visible_; }
   void SetVisible(bool value);
 
   // Returns the set of string to bag of byte properties. These properties are
   // shared with the view manager.
   const std::map<std::string, std::vector<uint8_t>>& shared_properties() const {
     return properties_;
   }
   // Sets a property. If |data| is null, this property is deleted.
   void SetSharedProperty(const std::string& name,
@@ skipping 116 matching lines @@
   };
 
   std::map<const void*, Value> prop_map_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_PUBLIC_CPP_VIEW_MANAGER_VIEW_H_