1// Copyright (c) 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#include "content/common/content_switches_internal.h"
6
7#include "base/command_line.h"
8#include "content/public/common/content_switches.h"
9
10#if defined(OS_WIN)
11#include "base/win/windows_version.h"
12#endif
13
14namespace content {
15
16bool IsPinchToZoomEnabled() {
17  const base::CommandLine& command_line =
18      *base::CommandLine::ForCurrentProcess();
19
20  // --disable-pinch should always disable pinch
21  if (command_line.HasSwitch(switches::kDisablePinch))
22    return false;
23
24#if defined(OS_WIN)
25  return base::win::GetVersion() >= base::win::VERSION_WIN8;
26#elif defined(OS_CHROMEOS)
27  return true;
28#else
29  return command_line.HasSwitch(switches::kEnableViewport) ||
30      command_line.HasSwitch(switches::kEnablePinch);
31#endif
32}
33
34} // namespace content
35