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

runtime/vm/pages.h

 // Copyright (c) 2011, 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_PAGES_H_
 #define RUNTIME_VM_PAGES_H_
 
 #include "vm/freelist.h"
 #include "vm/globals.h"
 #include "vm/lockers.h"
@@ skipping 64 matching lines @@
   HeapPage* next_;
   uword object_end_;
   PageType type_;
 
   friend class PageSpace;
 
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(HeapPage);
 };
 
-
 // The history holds the timing information of the last garbage collection
 // runs.
 class PageSpaceGarbageCollectionHistory {
  public:
   PageSpaceGarbageCollectionHistory() {}
   ~PageSpaceGarbageCollectionHistory() {}
 
   void AddGarbageCollectionTime(int64_t start, int64_t end);
 
   int GarbageCollectionTimeFraction();
 
   bool IsEmpty() const { return history_.Size() == 0; }
 
  private:
   struct Entry {
     int64_t start;
     int64_t end;
   };
   static const intptr_t kHistoryLength = 4;
   RingBuffer<Entry, kHistoryLength> history_;
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(PageSpaceGarbageCollectionHistory);
 };
 
-
 // PageSpaceController controls the heap size.
 class PageSpaceController {
  public:
   // The heap is passed in for recording stats only. The controller does not
   // invoke GC by itself.
   PageSpaceController(Heap* heap,
                       int heap_growth_ratio,
                       int heap_growth_max,
                       int garbage_collection_time_ratio);
   ~PageSpaceController();
@@ skipping 48 matching lines @@
 
   // The time in microseconds of the last time we tried to collect unused
   // code.
   int64_t last_code_collection_in_us_;
 
   PageSpaceGarbageCollectionHistory history_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpaceController);
 };
 
-
 class PageSpace {
  public:
   // TODO(iposva): Determine heap sizes and tune the page size accordingly.
   static const intptr_t kPageSizeInWords = 256 * KBInWords;
 
   enum GrowthPolicy { kControlGrowth, kForceGrowth };
 
   PageSpace(Heap* heap,
             intptr_t max_capacity_in_words,
             intptr_t max_external_in_words);
@@ skipping 241 matching lines @@
   friend class HeapIterationScope;
   friend class PageSpaceController;
   friend class SweeperTask;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_PAGES_H_