[dart:io] Adds ProcessInfo.{max,current}Rss. Adds OS::MaxRSS on Fuchsia.

runtime/bin/io_natives.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/io_natives.h"
 
 #include <stdlib.h>
 #include <string.h>
 
 #include "bin/builtin.h"
@@ skipping 84 matching lines @@
   V(Process_Start, 11)                                                         \
   V(Process_Wait, 5)                                                           \
   V(Process_KillPid, 2)                                                        \
   V(Process_SetExitCode, 1)                                                    \
   V(Process_GetExitCode, 0)                                                    \
   V(Process_Exit, 1)                                                           \
   V(Process_Sleep, 1)                                                          \
   V(Process_Pid, 1)                                                            \
   V(Process_SetSignalHandler, 1)                                               \
   V(Process_ClearSignalHandler, 1)                                             \
+  V(ProcessInfo_CurrentRSS, 0)                                                 \
+  V(ProcessInfo_MaxRSS, 0)                                                     \
   V(SecureSocket_Connect, 7)                                                   \
   V(SecureSocket_Destroy, 1)                                                   \
   V(SecureSocket_FilterPointer, 1)                                             \
   V(SecureSocket_GetSelectedProtocol, 1)                                       \
   V(SecureSocket_Handshake, 1)                                                 \
   V(SecureSocket_Init, 1)                                                      \
   V(SecureSocket_PeerCertificate, 1)                                           \
   V(SecureSocket_RegisterBadCertificateCallback, 2)                            \
   V(SecureSocket_RegisterHandshakeCompleteCallback, 2)                         \
   V(SecureSocket_Renegotiate, 4)                                               \
@@ skipping 89 matching lines @@
     struct NativeEntries* entry = &(IOEntries[i]);
     if (reinterpret_cast<Dart_NativeFunction>(entry->function_) == nf) {
       return reinterpret_cast<const uint8_t*>(entry->name_);
     }
   }
   return NULL;
 }
 
 }  // namespace bin
 }  // namespace dart