Remove the unneeded libweave directory

Change-Id: I30fd8c5626cf83da6415ffa14a2019ef43be9916
Reviewed-on: https://weave-review.googlesource.com/1450
Reviewed-by: Paul Westbrook <pwestbro@google.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/third_party/chromium/base/guid_posix.cc b/third_party/chromium/base/guid_posix.cc
new file mode 100644
index 0000000..f0fedc2
--- /dev/null
+++ b/third_party/chromium/base/guid_posix.cc
@@ -0,0 +1,42 @@
+// Copyright (c) 2012 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 "base/guid.h"
+
+#include "base/rand_util.h"
+#include "base/strings/stringprintf.h"
+
+namespace base {
+
+std::string GenerateGUID() {
+  uint64 sixteen_bytes[2] = { base::RandUint64(), base::RandUint64() };
+
+  // Set the GUID to version 4 as described in RFC 4122, section 4.4.
+  // The format of GUID version 4 must be xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx,
+  // where y is one of [8, 9, A, B].
+
+  // Clear the version bits and set the version to 4:
+  sixteen_bytes[0] &= 0xffffffffffff0fffULL;
+  sixteen_bytes[0] |= 0x0000000000004000ULL;
+
+  // Set the two most significant bits (bits 6 and 7) of the
+  // clock_seq_hi_and_reserved to zero and one, respectively:
+  sixteen_bytes[1] &= 0x3fffffffffffffffULL;
+  sixteen_bytes[1] |= 0x8000000000000000ULL;
+
+  return RandomDataToGUIDString(sixteen_bytes);
+}
+
+// TODO(cmasone): Once we're comfortable this works, migrate Windows code to
+// use this as well.
+std::string RandomDataToGUIDString(const uint64 bytes[2]) {
+  return StringPrintf("%08X-%04X-%04X-%04X-%012llX",
+                      static_cast<unsigned int>(bytes[0] >> 32),
+                      static_cast<unsigned int>((bytes[0] >> 16) & 0x0000ffff),
+                      static_cast<unsigned int>(bytes[0] & 0x0000ffff),
+                      static_cast<unsigned int>(bytes[1] >> 48),
+                      bytes[1] & 0x0000ffffffffffffULL);
+}
+
+}  // namespace base