Implement the renderer side of the mojo based local storage implementation.

mojo/common/common_type_converters.cc

 // Copyright 2013 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 "mojo/common/common_type_converters.h"
 
 #include <stdint.h>
 
 #include <string>
 
@@ skipping 21 matching lines @@
     const base::string16& input) {
   return TypeConverter<String, base::StringPiece>::Convert(
       base::UTF16ToUTF8(input));
 }
 // static
 base::string16 TypeConverter<base::string16, String>::Convert(
     const String& input) {
   return base::UTF8ToUTF16(input.To<base::StringPiece>());
 }
 
-std::string TypeConverter<std::string, Array<uint8_t> >::Convert(
+std::string TypeConverter<std::string, Array<uint8_t>>::Convert(
     const Array<uint8_t>& input) {
-  if (input.is_null() || input.size() == 0u)
+  if (input.is_null() || input.empty())
     return std::string();
 
   return std::string(reinterpret_cast<const char*>(&input.front()),
                      input.size());
 }
 
 Array<uint8_t> TypeConverter<Array<uint8_t>, std::string>::Convert(
     const std::string& input) {
   Array<uint8_t> result(input.size());
-  if (input.size() > 0)
+  if (!input.empty())
     memcpy(&result.front(), input.c_str(), input.size());
   return result;
 }
 
+base::string16 TypeConverter<base::string16, Array<uint8_t>>::Convert(
+    const Array<uint8_t>& input) {
+  if (input.is_null() || input.empty())
+    return base::string16();
+
+  return base::string16(reinterpret_cast<const base::char16*>(&input.front()),
+                        input.size() / sizeof(base::char16));
+}
+
+Array<uint8_t> TypeConverter<Array<uint8_t>, base::string16>::Convert(
+    const base::string16& input) {
+  Array<uint8_t> result(input.size() * sizeof(base::char16));
+  if (!input.empty())
+    memcpy(&result.front(), input.c_str(), input.size() * sizeof(base::char16));
+  return result;
+}
+
 }  // namespace mojo