1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CompositingState_h 6 #define CompositingState_h 7 8 namespace WebCore { 9 10 enum CompositingState { 11 // The layer paints into its enclosing composited ancestor. 12 NotComposited = 0, 13 14 // The layer is composited, but its contents still paint into enclosing composited ancestor. 15 // In this state, repaint invalidations must be sent to the enclosing composited ancestor. 16 // Typically this happens when a layer's properties need to be represented in the compositor 17 // output data structures, but it doesn't actually have any other reasons to be composited. 18 HasOwnBackingButPaintsIntoAncestor = 1, 19 20 PaintsIntoOwnBacking = 2, 21 22 // In this state, the RenderLayer subtree paints into a backing that is shared by 23 // several RenderLayer subtrees. 24 PaintsIntoGroupedBacking = 3 25 }; 26 27 } // namespace WebCore 28 29 #endif // CompositingState_h 30
