author Kartikaya Gupta <>
Tue, 23 May 2017 10:50:42 -0400
changeset 408330 fa1a20ec07bfb15ddb9101853ad0cedde28ad7a7
parent 399873 bd2f9fee24e6487e59cbc10adb2658bb5d39ddee
child 414980 37e047b6187f8a2cc9ce30268d42977e679db84e
permissions -rw-r--r--
Bug 1364525 - Update APIs to allow APZ to produce scrollbar transforms. r=pchang,botond This allows the APZCTreeManager::PushStateToWR function to also produce a set of transforms to be applied to scrollbar thumbs. The PushStateToWR function will be updated in the next patch to actually produce the transforms. This patch also rearranges code in WebRenderBridgeParent::CompositeToTarget so that either OMTA or APZ can produce animation updates. MozReview-Commit-ID: 1ghvVG32TC5

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=8 et :
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at */

#ifndef mozilla_${HEADER}_h
#define mozilla_${HEADER}_h

#  error "STL code can only be used with -fno-exceptions"

// Include mozalloc after the STL header and all other headers it includes
// have been preprocessed.

// Code built with !_HAS_EXCEPTIONS calls std::_Throw(), but the win2k
// CRT doesn't export std::_Throw().  So we define it.
#ifndef mozilla_Throw_h
#  include "mozilla/throw_msvc.h"

#ifdef _DEBUG
// From
// and
// there appear to be two types of STL container checking.  The
// former is enabled by -D_DEBUG (which is implied by -MDd or -MTd), and
// looks to be full generation/mutation checked iterators as done by
// _GLIBCXX_DEBUG.  The latter appears to just be bounds checking, and
// is enabled by the following macros.  It appears that the _DEBUG
// iterators subsume _SECURE_SCL, and the following settings are
// default anyway, so we'll just leave this commented out.
//#  define _SECURE_SCL 1
//#  define _SECURE_SCL_THROWS 0
// Note: _SECURE_SCL iterators are on by default in opt builds.  We
// could leave them on, but since gcc doesn't, we might as well
// preserve that behavior for perf reasons.  nsTArray is in the same
// camp as gcc.  Can revisit later.
// FIXME/bug 551254: because we're not wrapping all the STL headers we
// use, undefining this here can cause some headers to be built with
// iterator checking and others not.  Turning this off until we have a
// better plan.
//#  undef _SECURE_SCL

// C4275: When _HAS_EXCEPTIONS is set to 0, system STL header
//        will generate the warning which we can't modify.
// C4530: We know that code won't be able to catch exceptions,
//        but that's OK because we're not throwing them.
#pragma warning( push )
#pragma warning( disable : 4275 4530 )

#ifdef __clang__
#include_next <${HEADER}>
#include <${HEADER_PATH}>

#pragma warning( pop )

// See if we're in code that can use mozalloc.  NB: this duplicates
// code in nscore.h because nscore.h pulls in prtypes.h, and chromium
// can't build with that being included before base/basictypes.h.
#  if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
#    include "mozilla/mozalloc.h"
#  else
#    error "STL code can only be used with infallible ::operator new()"
#  endif

#endif  // if mozilla_${HEADER}_h