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

ppapi/cpp/dev/file_io_dev.cc

Index: ppapi/cpp/dev/file_io_dev.cc
===================================================================
--- ppapi/cpp/dev/file_io_dev.cc	(revision 67885)
+++ ppapi/cpp/dev/file_io_dev.cc	(working copy)
@@ -34,15 +34,10 @@
 }
 
 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) {