Changes around how embed roots are set

components/view_manager/public/cpp/view_tree_connection.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 COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_
 #define COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_
 
 #include <string>
 
 #include "components/view_manager/public/cpp/types.h"
@@ skipping 23 matching lines @@
   virtual View* GetViewById(Id id) = 0;
 
   // Returns the focused view; null if focus is not yet known or another app is
   // focused.
   virtual View* GetFocusedView() = 0;
 
   // Creates and returns a new View (which is owned by the ViewManager). Views
   // are initially hidden, use SetVisible(true) to show.
   virtual View* CreateView() = 0;
 
-  // Set view_tree.mojom for details.
-  virtual void SetEmbedRoot() = 0;
+  // Returns true if ACCESS_POLICY_EMBED_ROOT was specified.
+  virtual bool IsEmbedRoot() = 0;
 };
 
 }  // namespace mojo
 
 #endif  // COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_TREE_CONNECTION_H_