Update mojo sdk to rev 8d45c89c30b230843c5bd6dd0693a555750946c0

third_party/mojo/src/mojo/public/cpp/bindings/string.h

 // 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.
 
 #ifndef MOJO_PUBLIC_CPP_BINDINGS_STRING_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_STRING_H_
 
 #include <string>
 
 #include "mojo/public/cpp/bindings/lib/array_internal.h"
 #include "mojo/public/cpp/bindings/type_converter.h"
 #include "mojo/public/cpp/environment/logging.h"
 
 namespace mojo {
 
+// A UTF-8 encoded character string that can be null. Provides functions that
+// are similar to std::string, along with access to the underlying std::string
+// object.
 class String {
  public:
   typedef internal::String_Data Data_;
 
   String() : is_null_(true) {}
   String(const std::string& str) : value_(str), is_null_(false) {}
   String(const char* chars) : is_null_(!chars) {
     if (chars)
       value_ = chars;
   }
@@ skipping 137 matching lines @@
 
 template <>
 struct TypeConverter<String, const char*> {
   // |input| may be null, in which case a null String will be returned.
   static String Convert(const char* input) { return String(input); }
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_STRING_H_