Mandoline: Allow submitting CompositorFrames directly to mojo::Views

components/view_manager/public/cpp/view_manager_delegate.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_MANAGER_DELEGATE_H_
 #define COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_MANAGER_DELEGATE_H_
 
 #include <string>
 
 #include "components/view_manager/public/interfaces/view_manager.mojom.h"
@@ skipping 32 matching lines @@
   // the pipes connecting |services| and |exposed_services| to the embedder and
   // any services obtained from them are not broken and will continue to be
   // valid.
   virtual void OnEmbed(View* root) = 0;
 
   // Sent when another app is embedded in the same View as this connection.
   // Subsequently the root View and this object are destroyed (observers are
   // notified appropriately).
   virtual void OnUnembed();
 
+  // Sent when GPU resources are returned to the client for reuse.
+  // TODO(fsamuel): This ends up on the main thread. We need a separate
+  // interface for returned resources so we can return resources on the
+  // compositor thread
+  virtual void OnResourcesReturned(
+      mojo::Array<mojo::ReturnedResourcePtr> resources);
+
   // Only invoked if the connection has been marked as an embed root. This
   // allows the delegate to disallow the embed (return false), or change
   // the ServiceProviders that would be exposed to the new client.
   //
   // This implementation returns true (allowing the embed), and does not alter
   // the supplied ServiceProviders.
   //
   // See the mojom for more details.
   virtual void OnEmbedForDescendant(View* view,
                                     URLRequestPtr request,
                                     ViewManagerClientPtr* client);
 
   // Called from the destructor of ViewManager after all the Views have been
   // destroyed. |view_manager| is no longer valid after this call.
   virtual void OnViewManagerDestroyed(ViewManager* view_manager) = 0;
 
  protected:
   virtual ~ViewManagerDelegate() {}
 };
 
 }  // namespace mojo
 
 #endif  // COMPONENTS_VIEW_MANAGER_PUBLIC_CPP_VIEW_MANAGER_DELEGATE_H_