Delete some unused code found by -Wunused-function

content/renderer/browser_plugin/browser_plugin_bindings.cc

 // 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.
 
 #include "content/renderer/browser_plugin/browser_plugin_bindings.h"
 
 #include <cstdlib>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 68 matching lines @@
   return WebBindings::getStringIdentifier(kPartitionAttribute) == identifier;
 }
 
 std::string StringFromNPVariant(const NPVariant& variant) {
   if (!NPVARIANT_IS_STRING(variant))
     return std::string();
   const NPString& np_string = NPVARIANT_TO_STRING(variant);
   return std::string(np_string.UTF8Characters, np_string.UTF8Length);
 }
 
-string16 String16FromNPVariant(const NPVariant& variant) {
-  if (!NPVARIANT_IS_STRING(variant))
-    return string16();
-  const NPString& np_string = NPVARIANT_TO_STRING(variant);
-  string16 wstr;
-  if (!UTF8ToUTF16(np_string.UTF8Characters, np_string.UTF8Length, &wstr))
-    return string16();
-  return wstr;
-}
-
 bool StringToNPVariant(const std::string &in, NPVariant *variant) {
   size_t length = in.size();
   NPUTF8 *chars = static_cast<NPUTF8 *>(malloc(length));
   if (!chars) {
     VOID_TO_NPVARIANT(*variant);
     return false;
   }
   memcpy(chars, in.c_str(), length);
   STRINGN_TO_NPVARIANT(chars, length, *variant);
   return true;
@@ skipping 211 matching lines @@
       WebBindings::createObject(NULL, &browser_plugin_message_class);
   np_object_ = static_cast<BrowserPluginBindings::BrowserPluginNPObject*>(obj);
   np_object_->message_channel = weak_ptr_factory_.GetWeakPtr();
 }
 
 BrowserPluginBindings::~BrowserPluginBindings() {
   WebBindings::releaseObject(np_object_);
 }
 
 }  // namespace content