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

ppapi/cpp/dev/file_ref_dev.cc

Index: ppapi/cpp/dev/file_ref_dev.cc
===================================================================
--- ppapi/cpp/dev/file_ref_dev.cc	(revision 67885)
+++ ppapi/cpp/dev/file_ref_dev.cc	(working copy)
@@ -36,15 +36,10 @@
 }
 
 FileRef_Dev& FileRef_Dev::operator=(const FileRef_Dev& other) {
-  FileRef_Dev copy(other);
-  swap(copy);
+  Resource::operator=(other);
   return *this;
 }
 
-void FileRef_Dev::swap(FileRef_Dev& other) {
-  Resource::swap(other);
-}
-
 PP_FileSystemType_Dev FileRef_Dev::GetFileSystemType() const {
   if (!file_ref_f)
     return PP_FILESYSTEMTYPE_EXTERNAL;