Mojo C++ bindings: switch WebKit mojom targets to use STL/WTF types.

content/browser/hyphenation/hyphenation_impl.cc

 // Copyright 2016 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 "content/browser/hyphenation/hyphenation_impl.h"
 
 #include <algorithm>
 #include <map>
 #include <utility>
 
@@ skipping 47 matching lines @@
 HyphenationImpl::HyphenationImpl() {}
 
 HyphenationImpl::~HyphenationImpl() {}
 
 // static
 void HyphenationImpl::Create(blink::mojom::HyphenationRequest request) {
   mojo::MakeStrongBinding(base::MakeUnique<HyphenationImpl>(),
                           std::move(request));
 }
 
-void HyphenationImpl::OpenDictionary(const mojo::String& locale,
+void HyphenationImpl::OpenDictionary(const std::string& locale,
                                      const OpenDictionaryCallback& callback) {
   mojo::ScopedHandle handle;
   if (IsValidLocale(locale)) {
     base::File& file = GetDictionaryFile(locale);
     if (file.IsValid())
       handle = mojo::WrapPlatformFile(file.Duplicate().TakePlatformFile());
   }
   callback.Run(std::move(handle));
 }
 
 }  // namespace hyphenation