Remove NPAPI plugin from chromoting webapp.

remoting/host/plugin/host_plugin_utils.h

-// Copyright (c) 2012 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 REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_
-#define REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_
-
-#include <string>
-
-#include "third_party/npapi/bindings/npapi.h"
-#include "third_party/npapi/bindings/npfunctions.h"
-#include "third_party/npapi/bindings/npruntime.h"
-
-namespace remoting {
-
-// Global netscape functions initialized in NP_Initialize.
-extern NPNetscapeFuncs* g_npnetscape_funcs;
-
-// Convert an NPIdentifier into a std::string.
-std::string StringFromNPIdentifier(NPIdentifier identifier);
-
-// Convert an NPVariant into a std::string.
-std::string StringFromNPVariant(const NPVariant& variant);
-
-// Convert a std::string into an NPVariant.
-// Caller is responsible for making sure that NPN_ReleaseVariantValue is
-// called on returned value.
-NPVariant NPVariantFromString(const std::string& val);
-
-// Convert an NPVariant into an NSPObject.
-NPObject* ObjectFromNPVariant(const NPVariant& variant);
-
-// Scoped reference pointer for NPObjects. All objects using this class
-// must be owned by g_npnetscape_funcs.
-class ScopedRefNPObject {
- public:
-  ScopedRefNPObject();
-  explicit ScopedRefNPObject(NPObject* object);
-  explicit ScopedRefNPObject(const ScopedRefNPObject& object);
-  ~ScopedRefNPObject();
-
-  // Release the held reference and replace it with |object|, incrementing
-  // its reference count.
-  ScopedRefNPObject& operator=(NPObject* object);
-  ScopedRefNPObject& operator=(const ScopedRefNPObject& object);
-
-  NPObject* get() const { return object_; }
-
- private:
-  NPObject* object_;
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_HOST_PLUGIN_HOST_PLUGIN_UTILS_H_