| // Copyright 2016 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. |
| |
| #if defined(PrecompileCore_h_) |
| #error You shouldn't include the precompiled header file more than once. |
| #endif |
| #define PrecompileCore_h_ |
| |
| #if defined(_MSC_VER) |
| #include "build/win/Precompile.h" |
| #elif defined(__APPLE__) |
| #include "build/mac/Prefix.h" |
| #else |
| #error implement |
| #endif |
| |
| // In Blink a lot of operations center around dom and Document, or around |
| // layout/rendering and LayoutObject. Those two headers are in turn pulling |
| // in large parts of Blink's other headers which means that every compilation |
| // unit is compiling large parts of Blink. By precompiling Document.h |
| // and LayoutObject.h we only have to compile those parts once rather |
| // than 1500 times. It can make a large difference in compilation |
| // times (3-4 times faster). |
| #include "core/dom/Document.h" |
| #include "core/layout/LayoutObject.h" |
