Initial QuadTree implementation

gyp/bench.gyp

 # GYP file to build performance testbench.
 #
 {
   'includes': [
     'apptype_console.gypi',
   ],
   'targets': [
     {
       'target_name': 'bench',
       'type': 'executable',
@@ skipping 53 matching lines @@
         '../bench/MergeBench.cpp',
         '../bench/MorphologyBench.cpp',
         '../bench/MutexBench.cpp',
         '../bench/PathBench.cpp',
         '../bench/PathIterBench.cpp',
         '../bench/PathUtilsBench.cpp',
         '../bench/PerlinNoiseBench.cpp',
         '../bench/PicturePlaybackBench.cpp',
         '../bench/PictureRecordBench.cpp',
         '../bench/PremulAndUnpremulAlphaOpsBench.cpp',
+        '../bench/QuadTreeBench.cpp',
         '../bench/RTreeBench.cpp',
         '../bench/ReadPixBench.cpp',
         '../bench/RectBench.cpp',
         '../bench/RectoriBench.cpp',
         '../bench/RefCntBench.cpp',
         '../bench/RegionBench.cpp',
         '../bench/RegionContainBench.cpp',
         '../bench/RepeatTileBench.cpp',
         '../bench/ScalarBench.cpp',
         '../bench/ShaderMaskBench.cpp',
@@ skipping 83 matching lines @@
         ['skia_gpu == 1', {
           'sources': [
             '../bench/BenchGpuTimer_gl.h',
             '../bench/BenchGpuTimer_gl.cpp',
           ],
         }],
       ],
     }
   ],
 }