In-app messaging to communicate the imminent 32-bit deprecation to 32-bit-only users

chrome/browser/mac/system_bitness.cc

+// Copyright 2014 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.
+
+#include "chrome/browser/mac/system_bitness.h"
+
+#include <sys/sysctl.h>
+#include <sys/types.h>
+
+#include "grit/chromium_strings.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace chrome {
+
+#if !defined(ARCH_CPU_64_BITS)
+
+bool Has32BitOnlyCPU() {
+  int value;
+  size_t valueSize = sizeof(value);
+  if (sysctlbyname("hw.cpu64bit_capable", &value, &valueSize, NULL, 0) != 0) {
+    return true;
+  }
+  return value == 0;
+}
+
+base::string16 LocalizedObsoleteSystemString() {
+  return l10n_util::GetStringFUTF16(
+      Is32BitEndOfTheLine() ? IDS_MAC_32_BIT_OBSOLETE_NOW :
+                              IDS_MAC_32_BIT_OBSOLETE_SOON,
+      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
+}
+
+#endif
+
+bool Is32BitEndOfTheLine() {
+  // TODO(mark): Change to true immediately prior to the final build that
+  // supports 32-bit-only systems.
+  return false;
+}
+
+}  // namespace chrome