1 // Copyright 2014 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 UI_COMPOSITOR_COMPOSITOR_CONSTANTS_H_ 6 #define UI_COMPOSITOR_COMPOSITOR_CONSTANTS_H_ 7 8 // This flag is used to work around a rendering bug in Windows where the 9 // software surface becomes inconsistent with the hardware surface. This 10 // happens in particular circumstances (Classic mode, Chrome using hardware 11 // rendering, and the window on a secondary monitor) and when moving the mouse 12 // over the window, Windows restores the GDI software surface underneath the 13 // mouse, rather than the hardware surface we've painted. As a result, for 14 // small or infrequently painting windows, we force back to the software 15 // compositor to avoid this bug. See http://crbug.com/333380. 16 const wchar_t kForceSoftwareCompositor[] = L"Chrome.ForceSoftwareCompositor"; 17 18 #endif // UI_COMPOSITOR_COMPOSITOR_CONSTANTS_H_ 19
