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

ppapi/cpp/dev/file_io_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/file_io_dev.h"
 
 #include "ppapi/c/dev/ppb_file_io_dev.h"
 #include "ppapi/c/dev/ppb_file_io_trusted_dev.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/completion_callback.h"
@@ skipping 16 matching lines @@
   if (!file_io_f)
     return;
   PassRefFromConstructor(file_io_f->Create(Module::Get()->pp_module()));
 }
 
 FileIO_Dev::FileIO_Dev(const FileIO_Dev& other)
     : Resource(other) {
 }
 
 FileIO_Dev& FileIO_Dev::operator=(const FileIO_Dev& other) {
-  FileIO_Dev copy(other);
-  swap(copy);
+  Resource::operator=(other);
   return *this;
 }
 
-void FileIO_Dev::swap(FileIO_Dev& other) {
-  Resource::swap(other);
-}
-
 int32_t FileIO_Dev::Open(const FileRef_Dev& file_ref,
                          int32_t open_flags,
                          const CompletionCallback& cc) {
   if (!file_io_f)
     return PP_ERROR_NOINTERFACE;
   return file_io_f->Open(pp_resource(), file_ref.pp_resource(), open_flags,
                          cc.pp_completion_callback());
 }
 
 int32_t FileIO_Dev::Query(PP_FileInfo_Dev* result_buf,
@@ skipping 70 matching lines @@
 
 int32_t FileIO_Dev::WillSetLength(int64_t length,
                                   const CompletionCallback& cc) {
   if (!file_io_trusted_f)
     return PP_ERROR_NOINTERFACE;
   return file_io_trusted_f->WillSetLength(pp_resource(), length,
                                           cc.pp_completion_callback());
 }
 
 }  // namespace pp