Add a control benchmark.

gyp/bench.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'include_dirs': [
     '../src/core',
     '../src/effects',
     '../src/gpu',
     '../src/utils',
@@ skipping 27 matching lines @@
     '../bench/BlurRectBench.cpp',
     '../bench/BlurRectsBench.cpp',
     '../bench/BlurRoundRectBench.cpp',
     '../bench/ChartBench.cpp',
     '../bench/ChecksumBench.cpp',
     '../bench/ChromeBench.cpp',
     '../bench/CmapBench.cpp',
     '../bench/ColorCubeBench.cpp',
     '../bench/ColorFilterBench.cpp',
     '../bench/ColorPrivBench.cpp',
+    '../bench/ControlBench.cpp',
     '../bench/CoverageBench.cpp',
     '../bench/DashBench.cpp',
     '../bench/DeferredSurfaceCopyBench.cpp',
     '../bench/DisplacementBench.cpp',
     '../bench/ETCBitmapBench.cpp',
     '../bench/FSRectBench.cpp',
     '../bench/FontCacheBench.cpp',
     '../bench/FontScalerBench.cpp',
     '../bench/GameBench.cpp',
     '../bench/GeometryBench.cpp',
@@ skipping 48 matching lines @@
     '../bench/TableBench.cpp',
     '../bench/TextBench.cpp',
     '../bench/TextBlobBench.cpp',
     '../bench/TileBench.cpp',
     '../bench/VertBench.cpp',
     '../bench/WritePixelsBench.cpp',
     '../bench/WriterBench.cpp',
     '../bench/XfermodeBench.cpp',
   ],
 }