BASELINE: Update Chromium to 67.0.3396.47

Change-Id: Idcb1341782e417561a2473eeecc82642dafda5b7
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 39 insertions, 0 deletions

diff --git a/chromium/third_party/blink/renderer/platform/wtf/static_constructors.h b/chromium/third_party/blink/renderer/platform/wtf/static_constructors.h
new file mode 100644
index 00000000000..38d15e5178a
--- /dev/null
+++ b/chromium/third_party/blink/renderer/platform/wtf/static_constructors.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2006 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_STATIC_CONSTRUCTORS_H_
+#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_STATIC_CONSTRUCTORS_H_
+
+// We need to avoid having static constructors. This is accomplished by defining
+// a static array of the appropriate size and alignment, and defining a const
+// reference that points to the buffer. During initialization, the object will
+// be constructed with placement new into the buffer. This works with MSVC, GCC,
+// and Clang without producing dynamic initialization code even at -O0. The only
+// downside is that all external translation units will have to emit one more
+// load, while a real global could be referenced directly by absolute or
+// relative addressing.
+
+// Use an array of pointers instead of an array of char in case there is some
+// alignment issue.
+#define DEFINE_GLOBAL(type, name)                                          \
+  void* name##Storage[(sizeof(type) + sizeof(void*) - 1) / sizeof(void*)]; \
+  const type& name = *reinterpret_cast<type*>(&name##Storage)
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_WTF_STATIC_CONSTRUCTORS_H_