Move GUID utils to src/chrome/common.

base/guid_win.cc

Index: base/guid_win.cc
diff --git a/chrome/browser/guid_win.cc b/base/guid_win.cc
similarity index 92%
rename from chrome/browser/guid_win.cc
rename to base/guid_win.cc
index 115e8062c9a8cc4efdf17750b8924825df672f09..8e49bb3bf5f5fe5dd46ab149c90bd3de20f840c4 100644
--- a/chrome/browser/guid_win.cc
+++ b/base/guid_win.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/guid.h"
+#include "base/guid.h"
 
 #include <stdlib.h>
 
@@ -14,7 +14,7 @@
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 
-namespace guid {
+namespace base {
 
 std::string GenerateGUID() {
   const int kGUIDSize = 39;
@@ -35,4 +35,4 @@ std::string GenerateGUID() {
   return WideToUTF8(guid_string.substr(1, guid_string.length() - 2));
 }
 
-}  // namespace guid
+}  // namespace base