win: Implementation of CrashReportDatabase for Windows

util/misc/uuid.h

Index: util/misc/uuid.h
diff --git a/util/misc/uuid.h b/util/misc/uuid.h
index 27e2d9a5de1aca5eb35cbe27879a4b053a8dc1f5..bbfc771f59b6d6a9183fbdf4b19793ac0c001879 100644
--- a/util/misc/uuid.h
+++ b/util/misc/uuid.h
@@ -20,6 +20,7 @@
 #include <string>
 
 #include "base/strings/string_piece.h"
+#include "build/build_config.h"
 
 namespace crashpad {
 
@@ -66,6 +67,11 @@ struct UUID {
   //! \return A string of the form `"00112233-4455-6677-8899-aabbccddeeff"`.
   std::string ToString() const;
 
+#if defined(OS_WIN)
+  //! \brief The same as ToString, but returned as a wstring.
+  std::wstring ToWideString() const;
+#endif  // OS_WIN
+
   // These fields are laid out according to RFC 4122 §4.1.2.
   uint32_t data_1;
   uint16_t data_2;