Delete CC.

cc/test/pixel_comparator.h

-// Copyright (c) 2013 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.
-
-#ifndef CC_TEST_PIXEL_COMPARATOR_H_
-#define CC_TEST_PIXEL_COMPARATOR_H_
-
-#include "base/compiler_specific.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-namespace cc {
-
-// Interface for pixel comparators.
-class PixelComparator {
- public:
-  virtual ~PixelComparator() {}
-
-  virtual bool Compare(const SkBitmap& actual_bmp,
-                       const SkBitmap& expected_bmp) const = 0;
-};
-
-// Exact pixel comparator. Counts the number of pixel with an error.
-class ExactPixelComparator : public PixelComparator {
- public:
-  explicit ExactPixelComparator(const bool discard_alpha);
-  ~ExactPixelComparator() override {}
-
-  // Returns true if the two bitmaps are identical. Otherwise, returns false
-  // and report the number of pixels with an error on LOG(ERROR). Differences
-  // in the alpha channel are ignored.
-  bool Compare(const SkBitmap& actual_bmp,
-               const SkBitmap& expected_bmp) const override;
-
- private:
-  // Exclude alpha channel from comparison?
-  bool discard_alpha_;
-};
-
-// Fuzzy pixel comparator. Counts small and arbitrary errors separately and
-// computes average and maximum absolute errors per color channel.
-class FuzzyPixelComparator : public PixelComparator {
- public:
-  FuzzyPixelComparator(const bool discard_alpha,
-                       const float error_pixels_percentage_limit,
-                       const float small_error_pixels_percentage_limit,
-                       const float avg_abs_error_limit,
-                       const int max_abs_error_limit,
-                       const int small_error_threshold);
-  ~FuzzyPixelComparator() override {}
-
-  // Computes error metrics and returns true if the errors don't exceed the
-  // specified limits. Otherwise, returns false and reports the error metrics on
-  // LOG(ERROR). Differences in the alpha channel are ignored.
-  bool Compare(const SkBitmap& actual_bmp,
-               const SkBitmap& expected_bmp) const override;
-
- private:
-  // Exclude alpha channel from comparison?
-  bool discard_alpha_;
-  // Limit for percentage of pixels with an error.
-  float error_pixels_percentage_limit_;
-  // Limit for percentage of pixels with a small error.
-  float small_error_pixels_percentage_limit_;
-  // Limit for average absolute error (excluding identical pixels).
-  float avg_abs_error_limit_;
-  // Limit for largest absolute error.
-  int max_abs_error_limit_;
-  // Threshold for small errors.
-  int small_error_threshold_;
-};
-
-// All pixels can be off by one, but any more than that is an error.
-class FuzzyPixelOffByOneComparator : public FuzzyPixelComparator {
- public:
-  explicit FuzzyPixelOffByOneComparator(bool discard_alpha)
-      : FuzzyPixelComparator(discard_alpha, 100.f, 0.f, 1.f, 1, 0) {}
-};
-
-}  // namespace cc
-
-#endif  // CC_TEST_PIXEL_COMPARATOR_H_