Remove SkQuadTree.

src/core/SkBBHFactory.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBBHFactory.h"
-#include "SkQuadTree.h"
 #include "SkRTree.h"
 #include "SkTileGrid.h"
 
 
-SkBBoxHierarchy* SkQuadTreeFactory::operator()(int width, int height) const {
-    return SkNEW_ARGS(SkQuadTree, (SkIRect::MakeWH(width, height)));
-}
-
 SkBBoxHierarchy* SkRTreeFactory::operator()(int width, int height) const {
     // These values were empirically determined to produce reasonable
     // performance in most cases.
     static const int kRTreeMinChildren = 6;
     static const int kRTreeMaxChildren = 11;
 
     SkScalar aspectRatio = SkScalarDiv(SkIntToScalar(width),
                                        SkIntToScalar(height));
     bool sortDraws = false;  // Do not sort draw calls when bulk loading.
 
     return SkRTree::Create(kRTreeMinChildren, kRTreeMaxChildren,
                            aspectRatio, sortDraws);
 }
 
 SkBBoxHierarchy* SkTileGridFactory::operator()(int width, int height) const {
     SkASSERT(fInfo.fMargin.width() >= 0);
     SkASSERT(fInfo.fMargin.height() >= 0);
     // Note: SkIRects are non-inclusive of the right() column and bottom() row.
     // For example, an SkIRect at 0,0 with a size of (1,1) will only have
     // content at pixel (0,0) and will report left=0 and right=1, hence the
     // "-1"s below.
     int xTileCount = (width + fInfo.fTileInterval.width() - 1) / fInfo.fTileInterval.width();
     int yTileCount = (height + fInfo.fTileInterval.height() - 1) / fInfo.fTileInterval.height();
     return SkNEW_ARGS(SkTileGrid, (xTileCount, yTileCount, fInfo));
 }