Remove SkQuadTree.

include/core/SkBBHFactory.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkBBHFactory_DEFINED
 #define SkBBHFactory_DEFINED
 
 #include "SkSize.h"
 #include "SkPoint.h"
 
 class SkBBoxHierarchy;
 
 class SK_API SkBBHFactory {
 public:
     /**
      *  Allocate a new SkBBoxHierarchy. Return NULL on failure.
      */
     virtual SkBBoxHierarchy* operator()(int width, int height) const = 0;
     virtual ~SkBBHFactory() {};
 };
 
-class SK_API SkQuadTreeFactory : public SkBBHFactory {
-public:
-    virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
-private:
-    typedef SkBBHFactory INHERITED;
-};
-
-
 class SK_API SkRTreeFactory : public SkBBHFactory {
 public:
     virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
 private:
     typedef SkBBHFactory INHERITED;
 };
 
 class SK_API SkTileGridFactory : public SkBBHFactory {
 public:
     struct TileGridInfo {
@@ skipping 17 matching lines @@
 
     virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
 
 private:
     TileGridInfo fInfo;
 
     typedef SkBBHFactory INHERITED;
 };
 
 #endif