Rename paint data structures

chrome/browser/thumbnails/content_analysis_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/thumbnails/content_analysis.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <cmath>
 #include <cstdlib>
 #include <functional>
 #include <limits>
 #include <memory>
 #include <numeric>
 #include <vector>
 
+#include "skia/ext/platform_canvas.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/color_analysis.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/image/image.h"
 
@@ skipping 650 matching lines @@
 
   int histogram[256] = {};
   color_utils::BuildLumaHistogram(result, histogram);
   int non_zero_color_count = std::count_if(
       histogram, histogram + 256, [](int value) { return value > 0; });
   EXPECT_GT(non_zero_color_count, 4);
 
 }
 
 }  // namespace thumbnailing_utils