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

third_party/WebKit/Source/modules/broadcastchannel/BroadcastChannel.h

 // 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.
 
 #ifndef BroadcastChannel_h
 #define BroadcastChannel_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/events/EventTarget.h"
@@ skipping 36 matching lines @@
 
   // ContextLifecycleObserver:
   void contextDestroyed() override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   BroadcastChannel(ExecutionContext*, const String& name);
 
   // mojom::blink::BroadcastChannelClient:
-  void OnMessage(mojo::WTFArray<uint8_t> message) override;
+  void OnMessage(const WTF::Vector<uint8_t>& message) override;
 
   // Called when the mojo binding disconnects.
   void onError();
 
   RefPtr<SecurityOrigin> m_origin;
   String m_name;
 
   mojo::AssociatedBinding<mojom::blink::BroadcastChannelClient> m_binding;
   mojom::blink::BroadcastChannelClientAssociatedPtr m_remoteClient;
 };
 
 }  // namespace blink
 
 #endif  // BroadcastChannel_h