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

ppapi/cpp/dev/directory_reader_dev.cc

Index: ppapi/cpp/dev/directory_reader_dev.cc
===================================================================
--- ppapi/cpp/dev/directory_reader_dev.cc	(revision 67885)
+++ ppapi/cpp/dev/directory_reader_dev.cc	(working copy)
@@ -33,15 +33,10 @@
 
 DirectoryReader_Dev& DirectoryReader_Dev::operator=(
     const DirectoryReader_Dev& other) {
-  DirectoryReader_Dev copy(other);
-  swap(copy);
+  Resource::operator=(other);
   return *this;
 }
 
-void DirectoryReader_Dev::swap(DirectoryReader_Dev& other) {
-  Resource::swap(other);
-}
-
 int32_t DirectoryReader_Dev::GetNextEntry(DirectoryEntry_Dev* entry,
                                           const CompletionCallback& cc) {
   if (!directory_reader_f)