Wires up view manager to an actual display

mojo/services/public/interfaces/view_manager/view_manager.mojom

 // 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.
 
 module mojo.services.view_manager {
 
 struct INode {
   uint32 parent_id;
   uint32 node_id;
   uint32 view_id;
@@ skipping 35 matching lines @@
 
   // Creates a new view with the specified id. It is up to the client to ensure
   // the id is unique to the connection (the id need not be globally unique).
   CreateView(uint16 view_id) => (bool success);
 
   // Deletes the view with the specified id.
   DeleteView(uint32 view_id, uint32 change_id) => (bool success);
 
   // Sets the view a node is showing.
   SetView(uint32 node_id, uint32 view_id, uint32 change_id) => (bool success);
+
+  // Shows the specified image (png encoded) in the specified view.
+  SetViewContents(uint32 view_id,
+                  handle<shared_buffer> buffer,
+                  uint32 buffer_size);
 };
 
 [Peer=IViewManager]
 interface IViewManagerClient {
   // Invoked once the connection has been established. |connection_id| is the id
   // used to uniquely identify the connection.
   OnConnectionEstablished(uint16 connection_id);
 
   // Invoked when a change is done to the hierarchy. A value of 0 is used to
   // identify a null node. For example, if the old_parent is NULL, 0 is
   // supplied. See description above ViewManager for details on |change_id|.
   OnNodeHierarchyChanged(uint32 node,
                          uint32 new_parent,
                          uint32 old_parent,
                          uint32 change_id);
 
   // Invoked when the view associated with a node is replaced by another view.
   // 0 is used to identify a null view.
   OnNodeViewReplaced(uint32 node,
                      uint32 new_view_id,
                      uint32 old_view_id,
                      uint32 change_id);
 };
 
 }