Revert of Implement ui::ClipboardMus.

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 38 matching lines @@
 }
 
 Array<uint8_t> TypeConverter<Array<uint8_t>, std::string>::Convert(
     const std::string& input) {
   Array<uint8_t> result(input.size());
   if (!input.empty())
     memcpy(&result.front(), input.c_str(), input.size());
   return result;
 }
 
-Array<uint8_t> TypeConverter<Array<uint8_t>, base::StringPiece>::Convert(
-    const base::StringPiece& input) {
-  Array<uint8_t> result(input.size());
-  if (!input.empty())
-    memcpy(&result.front(), input.data(), 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