VM: Re-format to use at most one newline between functions

runtime/vm/thread_interrupter.h

 // 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.
 
 #ifndef RUNTIME_VM_THREAD_INTERRUPTER_H_
 #define RUNTIME_VM_THREAD_INTERRUPTER_H_
 
 #include "vm/allocation.h"
+#include "vm/os_thread.h"
 #include "vm/signal_handler.h"
-#include "vm/os_thread.h"
 #include "vm/thread.h"
 
 namespace dart {
 
 struct InterruptedThreadState {
   uintptr_t pc;
   uintptr_t csp;
   uintptr_t dsp;
   uintptr_t fp;
   uintptr_t lr;
 };
 
-
 class ThreadInterrupter : public AllStatic {
  public:
   static void InitOnce();
 
   static void Startup();
   static void Shutdown();
 
   // Delay between interrupts.
   static void SetInterruptPeriod(intptr_t period);
 
@@ skipping 25 matching lines @@
   static void InstallSignalHandler();
 
   static void RemoveSignalHandler();
 
   friend class ThreadInterrupterVisitIsolates;
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_THREAD_INTERRUPTER_H_