Remove parts of //cc we aren't using

cc/resources/tiling_set_raster_queue_all.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CC_RESOURCES_TILING_SET_RASTER_QUEUE_ALL_H_
-#define CC_RESOURCES_TILING_SET_RASTER_QUEUE_ALL_H_
-
-#include "cc/base/cc_export.h"
-#include "cc/resources/picture_layer_tiling_set.h"
-#include "cc/resources/tile.h"
-#include "cc/resources/tile_priority.h"
-
-namespace cc {
-
-// This queue returns all tiles required to be rasterized from HIGH_RESOLUTION
-// and LOW_RESOLUTION tilings.
-class CC_EXPORT TilingSetRasterQueueAll {
- public:
-  TilingSetRasterQueueAll(PictureLayerTilingSet* tiling_set,
-                          bool prioritize_low_res);
-  ~TilingSetRasterQueueAll();
-
-  Tile* Top();
-  const Tile* Top() const;
-  void Pop();
-  bool IsEmpty() const;
-
- private:
-  // Helper base class for individual region iterators.
-  class OnePriorityRectIterator {
-   public:
-    OnePriorityRectIterator();
-    OnePriorityRectIterator(PictureLayerTiling* tiling,
-                            TilingData* tiling_data);
-
-    bool done() const { return !tile_; }
-    Tile* operator*() const { return tile_; }
-
-   protected:
-    ~OnePriorityRectIterator() = default;
-    bool TileNeedsRaster(Tile* tile) const {
-      return tile->NeedsRaster() && !tiling_->IsTileOccluded(tile);
-    }
-
-    template <typename TilingIteratorType>
-    void AdvanceToNextTile(TilingIteratorType* iterator);
-    template <typename TilingIteratorType>
-    bool GetFirstTileAndCheckIfValid(TilingIteratorType* iterator);
-
-    Tile* tile_;
-    PictureLayerTiling* tiling_;
-    TilingData* tiling_data_;
-  };
-
-  // Iterates over visible rect only, left to right top to bottom order.
-  class VisibleTilingIterator : public OnePriorityRectIterator {
-   public:
-    VisibleTilingIterator() = default;
-    VisibleTilingIterator(PictureLayerTiling* tiling, TilingData* tiling_data);
-
-    VisibleTilingIterator& operator++();
-
-   private:
-    TilingData::Iterator iterator_;
-  };
-
-  // Iterates over skewport only, spiral around the visible rect.
-  class SkewportTilingIterator : public OnePriorityRectIterator {
-   public:
-    SkewportTilingIterator() = default;
-    SkewportTilingIterator(PictureLayerTiling* tiling, TilingData* tiling_data);
-
-    SkewportTilingIterator& operator++();
-
-   private:
-    TilingData::SpiralDifferenceIterator iterator_;
-  };
-
-  // Iterates over soon border only, spiral around the visible rect.
-  class SoonBorderTilingIterator : public OnePriorityRectIterator {
-   public:
-    SoonBorderTilingIterator() = default;
-    SoonBorderTilingIterator(PictureLayerTiling* tiling,
-                             TilingData* tiling_data);
-
-    SoonBorderTilingIterator& operator++();
-
-   private:
-    TilingData::SpiralDifferenceIterator iterator_;
-  };
-
-  // Iterates over eventually rect only, spiral around the soon rect.
-  class EventuallyTilingIterator : public OnePriorityRectIterator {
-   public:
-    EventuallyTilingIterator() = default;
-    EventuallyTilingIterator(PictureLayerTiling* tiling,
-                             TilingData* tiling_data);
-
-    EventuallyTilingIterator& operator++();
-
-   private:
-    TilingData::SpiralDifferenceIterator iterator_;
-  };
-
-  // Iterates over all of the above phases in the following order: visible,
-  // skewport, soon border, eventually.
-  class TilingIterator {
-   public:
-    TilingIterator();
-    explicit TilingIterator(PictureLayerTiling* tiling,
-                            TilingData* tiling_data);
-    ~TilingIterator() = default;
-
-    bool done() const { return current_tile_ == nullptr; }
-    const Tile* operator*() const { return current_tile_; }
-    Tile* operator*() { return current_tile_; }
-    TilePriority::PriorityBin type() const {
-      switch (phase_) {
-        case VISIBLE_RECT:
-          return TilePriority::NOW;
-        case SKEWPORT_RECT:
-        case SOON_BORDER_RECT:
-          return TilePriority::SOON;
-        case EVENTUALLY_RECT:
-          return TilePriority::EVENTUALLY;
-      }
-      NOTREACHED();
-      return TilePriority::EVENTUALLY;
-    }
-
-    TilingIterator& operator++();
-
-   private:
-    enum Phase {
-      VISIBLE_RECT,
-      SKEWPORT_RECT,
-      SOON_BORDER_RECT,
-      EVENTUALLY_RECT
-    };
-
-    void AdvancePhase();
-
-    PictureLayerTiling* tiling_;
-    TilingData* tiling_data_;
-
-    Phase phase_;
-
-    Tile* current_tile_;
-    VisibleTilingIterator visible_iterator_;
-    SkewportTilingIterator skewport_iterator_;
-    SoonBorderTilingIterator soon_border_iterator_;
-    EventuallyTilingIterator eventually_iterator_;
-  };
-
-  enum IteratorType { LOW_RES, HIGH_RES, NUM_ITERATORS };
-
-  void AdvanceToNextStage();
-
-  PictureLayerTilingSet* tiling_set_;
-
-  struct IterationStage {
-    IteratorType iterator_type;
-    TilePriority::PriorityBin tile_type;
-  };
-
-  size_t current_stage_;
-
-  // One low res stage, and three high res stages.
-  IterationStage stages_[4];
-  TilingIterator iterators_[NUM_ITERATORS];
-};
-
-}  // namespace cc
-
-#endif  // CC_RESOURCES_TILING_SET_RASTER_QUEUE_ALL_H_