Remove all the swap() stuff in the PPAPI C++ wrappers....

ppapi/cpp/dev/directory_entry_dev.cc

 // Copyright (c) 2010 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 "ppapi/cpp/dev/directory_entry_dev.h"
 
 #include <string.h>
 
 #include "ppapi/cpp/module.h"
 
@@ skipping 10 matching lines @@
     Module::Get()->core()->AddRefResource(data_.file_ref);
 }
 
 DirectoryEntry_Dev::~DirectoryEntry_Dev() {
   if (data_.file_ref)
     Module::Get()->core()->ReleaseResource(data_.file_ref);
 }
 
 DirectoryEntry_Dev& DirectoryEntry_Dev::operator=(
     const DirectoryEntry_Dev& other) {
-  DirectoryEntry_Dev copy(other);
-  swap(copy);
+  if (data_.file_ref)
+    Module::Get()->core()->ReleaseResource(data_.file_ref);
+  data_ = other.data_;
+  if (data_.file_ref)
+    Module::Get()->core()->AddRefResource(data_.file_ref);
   return *this;
 }
 
-void DirectoryEntry_Dev::swap(DirectoryEntry_Dev& other) {
-  std::swap(data_.file_ref, other.data_.file_ref);
-  std::swap(data_.file_type, other.data_.file_type);
-}
-
 }  // namespace pp