Disable profiler for Dartium bots

runtime/vm/thread_interrupter_linux.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 "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include "vm/signal_handler.h"
 #include "vm/thread_interrupter.h"
 
@@ skipping 23 matching lines @@
     its.tid = state->id;
     its.pc = SignalHandler::GetProgramCounter(mcontext);
     its.fp = SignalHandler::GetFramePointer(mcontext);
     its.sp = SignalHandler::GetStackPointer(mcontext);
     state->callback(its, state->data);
   }
 };
 
 
 void ThreadInterrupter::InterruptThreads(int64_t current_time) {
-  // Temporary test.
-  return;
   for (intptr_t i = 0; i < threads_size_; i++) {
     ThreadState* state = threads_[i];
     ASSERT(state->id != Thread::kInvalidThreadId);
     if (FLAG_trace_thread_interrupter) {
       OS::Print("ThreadInterrupter interrupting %p\n",
                 reinterpret_cast<void*>(state->id));
     }
     pthread_kill(state->id, SIGPROF);
   }
 }
 
 
 void ThreadInterrupter::InstallSignalHandler() {
   SignalHandler::Install(ThreadInterrupterLinux::ThreadInterruptSignalHandler);
 }
 
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)