Work around a kernel bug on Android.

runtime/vm/signal_handler_macos.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 "vm/globals.h"
 #include "vm/simulator.h"
 #include "vm/signal_handler.h"
 #if defined(TARGET_OS_MACOS)
 
 namespace dart {
@@ skipping 84 matching lines @@
 #elif defined(TARGET_ARCH_MIPS)
   lr = 0;
 #else
   UNIMPLEMENTED();
 #endif  // TARGET_ARCH_...
 
   return lr;
 }
 
 
-void SignalHandler::Install(SignalAction action) {
+void SignalHandler::InstallImpl(SignalAction action) {
   struct sigaction act;
   act.sa_handler = NULL;
   act.sa_sigaction = action;
   sigemptyset(&act.sa_mask);
   act.sa_flags = SA_RESTART | SA_SIGINFO;
   int r = sigaction(SIGPROF, &act, NULL);
   ASSERT(r == 0);
 }
 
 
 void SignalHandler::Remove() {
   // Ignore future SIGPROF signals because by default SIGPROF will terminate
   // the process and we may have some signals in flight.
   struct sigaction act;
   act.sa_handler = SIG_IGN;
   sigemptyset(&act.sa_mask);
   act.sa_flags = 0;
   int r = sigaction(SIGPROF, &act, NULL);
   ASSERT(r == 0);
 }
 
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)