Move signal_blocker to platform and use it by default in TEMP_FAILURE_RETRY.

runtime/bin/eventhandler_android.h

 // Copyright (c) 2012, 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.
 
 #ifndef BIN_EVENTHANDLER_ANDROID_H_
 #define BIN_EVENTHANDLER_ANDROID_H_
 
 #if !defined(BIN_EVENTHANDLER_H_)
 #error Do not include eventhandler_android.h directly;
 #error use eventhandler.h instead.
 #endif
 
-#include <unistd.h>
+#include <errno.h>
 #include <sys/epoll.h>
 #include <sys/socket.h>
+#include <unistd.h>
 
 #include "platform/hashmap.h"
+#include "platform/signal_blocker.h"
 
 
 namespace dart {
 namespace bin {
 
 class InterruptMessage {
  public:
   intptr_t id;
   Dart_Port dart_port;
   int64_t data;
 };
 
 
 class SocketData {
  public:
   explicit SocketData(intptr_t fd)
       : fd_(fd), port_(0), mask_(0), tokens_(8) {
     ASSERT(fd_ != -1);
   }
 
   intptr_t GetPollEvents();
 
   void Close() {
     port_ = 0;
     mask_ = 0;
-    close(fd_);
+    VOID_TEMP_FAILURE_RETRY(close(fd_));
     fd_ = -1;
   }
 
   void SetPortAndMask(Dart_Port port, intptr_t mask) {
     ASSERT(fd_ != -1);
     port_ = port;
     mask_ = mask;
   }
 
   intptr_t fd() { return fd_; }
@@ skipping 49 matching lines @@
   TimeoutQueue timeout_queue_;
   bool shutdown_;
   int interrupt_fds_[2];
   int epoll_fd_;
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_EVENTHANDLER_ANDROID_H_