Remove SkQuadTree.

tests/PictureTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBBoxHierarchy.h"
 #include "SkBlurImageFilter.h"
 #include "SkCanvas.h"
@@ skipping 1455 matching lines @@
 
     {
         // RTree
         SkRTreeFactory factory;
         SkPictureRecorder recorder;
         recorder.beginRecording(1, 1, &factory);
         SkAutoTUnref<SkPicture> picture(recorder.endRecording());
 
         canvas.drawPicture(picture);
     }
-
-    {
-        // quad tree
-        SkQuadTreeFactory factory;
-        SkPictureRecorder recorder;
-        recorder.beginRecording(1, 1, &factory);
-        SkAutoTUnref<SkPicture> picture(recorder.endRecording());
-
-        canvas.drawPicture(picture);
-    }
 }
 
 static void test_clip_bound_opt(skiatest::Reporter* reporter) {
     // Test for crbug.com/229011
     SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4),
                                     SkIntToScalar(2), SkIntToScalar(2));
     SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7),
                                     SkIntToScalar(1), SkIntToScalar(1));
     SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6),
                                     SkIntToScalar(1), SkIntToScalar(1));
@@ skipping 355 matching lines @@
     SkAutoTUnref<const SkPicture> picture(recorder.endRecording());
 
     SkCanvas big(640, 480), small(300, 200);
 
     picture->draw(&big);
     REPORTER_ASSERT(r, bbh.searchCalls == 0);
 
     picture->draw(&small);
     REPORTER_ASSERT(r, bbh.searchCalls == 1);
 }