Add platform/transforms pretty printers for logging and testing

third_party/WebKit/Source/platform/transforms/TransformTestHelper.h

Index: third_party/WebKit/Source/platform/transforms/TransformTestHelper.h
diff --git a/third_party/WebKit/Source/platform/transforms/TransformTestHelper.h b/third_party/WebKit/Source/platform/transforms/TransformTestHelper.h
deleted file mode 100644
index 5180cafea9c404a0c86c9f0c78551f68fbc66191..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/transforms/TransformTestHelper.h
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright 2015 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 TransformTestHelper_h
-#define TransformTestHelper_h
-
-#include "platform/PlatformExport.h"
-#include "platform/transforms/TransformationMatrix.h"
-#include "wtf/text/WTFString.h"
-
-#include <gtest/gtest.h>
-
-// This file should only be included in test source files.
-
-#define EXPECT_TRANSFORMS_ALMOST_EQ(a, b) \
-    EXPECT_PRED_FORMAT2(::blink::TransformTestHelper::transformsAreAlmostEqual, a, b)
-#define ASSERT_TRANSFORMS_ALMOST_EQ(a, b) \
-    ASSERT_PRED_FORMAT2(::blink::TransformTestHelper::transformsAreAlmostEqual, a, b)
-
-namespace blink {
-namespace TransformTestHelper {
-
-// These are helpers for the macros above.
-
-bool floatsAreAlmostEqual(float a, float b)
-{
-    // This trick was taken from ui/gfx/test/gfx_util.cc.
-    return ::testing::FloatLE("a", "b", a, b) && ::testing::FloatLE("b", "a", b, a);
-}
-
-String transformationMatrixToString(const TransformationMatrix& matrix)
-{
-    return String::format(
-        "(row-major) [ [ %.2f %.2f %.2f %.2f ] [ %.2f %.2f %.2f %.2f ] [ %.2f %.2f %.2f %.2f ] [ %.2f %.2f %.2f %.2f ] ]",
-        matrix.m11(), matrix.m21(), matrix.m31(), matrix.m41(),
-        matrix.m12(), matrix.m22(), matrix.m32(), matrix.m42(),
-        matrix.m13(), matrix.m23(), matrix.m33(), matrix.m43(),
-        matrix.m14(), matrix.m24(), matrix.m34(), matrix.m44());
-}
-
-const TransformationMatrix& toTransformationMatrix(const TransformationMatrix& matrix) { return matrix; }
-
-TransformationMatrix toTransformationMatrix(const SkMatrix44& skMatrix44)
-{
-    TransformationMatrix matrix;
-    matrix.setMatrix(
-        skMatrix44.getDouble(0, 0),
-        skMatrix44.getDouble(1, 0),
-        skMatrix44.getDouble(2, 0),
-        skMatrix44.getDouble(3, 0),
-        skMatrix44.getDouble(0, 1),
-        skMatrix44.getDouble(1, 1),
-        skMatrix44.getDouble(2, 1),
-        skMatrix44.getDouble(3, 1),
-        skMatrix44.getDouble(0, 2),
-        skMatrix44.getDouble(1, 2),
-        skMatrix44.getDouble(2, 2),
-        skMatrix44.getDouble(3, 2),
-        skMatrix44.getDouble(0, 3),
-        skMatrix44.getDouble(1, 3),
-        skMatrix44.getDouble(2, 3),
-        skMatrix44.getDouble(3, 3));
-    return matrix;
-}
-
-template <typename T1, typename T2>
-::testing::AssertionResult transformsAreAlmostEqual(
-    const char* lhsExpr, const char* rhsExpr,
-    const T1& lhs, const T2& rhs)
-{
-    return transformsAreAlmostEqual(lhsExpr, rhsExpr, toTransformationMatrix(lhs), toTransformationMatrix(rhs));
-}
-
-template <>
-::testing::AssertionResult transformsAreAlmostEqual(
-    const char* lhsExpr, const char* rhsExpr,
-    const TransformationMatrix& lhs, const TransformationMatrix& rhs)
-{
-    if (lhs == rhs)
-        return ::testing::AssertionSuccess();
-
-    if (floatsAreAlmostEqual(lhs.m11(), rhs.m11())
-        && floatsAreAlmostEqual(lhs.m12(), rhs.m12())
-        && floatsAreAlmostEqual(lhs.m13(), rhs.m13())
-        && floatsAreAlmostEqual(lhs.m14(), rhs.m14())
-        && floatsAreAlmostEqual(lhs.m21(), rhs.m21())
-        && floatsAreAlmostEqual(lhs.m22(), rhs.m22())
-        && floatsAreAlmostEqual(lhs.m23(), rhs.m23())
-        && floatsAreAlmostEqual(lhs.m24(), rhs.m24())
-        && floatsAreAlmostEqual(lhs.m31(), rhs.m31())
-        && floatsAreAlmostEqual(lhs.m32(), rhs.m32())
-        && floatsAreAlmostEqual(lhs.m33(), rhs.m33())
-        && floatsAreAlmostEqual(lhs.m34(), rhs.m34())
-        && floatsAreAlmostEqual(lhs.m41(), rhs.m41())
-        && floatsAreAlmostEqual(lhs.m42(), rhs.m42())
-        && floatsAreAlmostEqual(lhs.m43(), rhs.m43())
-        && floatsAreAlmostEqual(lhs.m44(), rhs.m44()))
-        return ::testing::AssertionSuccess();
-
-    return ::testing::AssertionFailure()
-        << "Value of: " << rhsExpr
-        << "\n  Actual: " << transformationMatrixToString(rhs).ascii().data()
-        << "\nExpected: " << lhsExpr
-        << "\nWhich is: " << transformationMatrixToString(lhs).ascii().data();
-}
-
-} // namespace TransformTestHelper
-} // namespace blink
-
-#endif // TransformTestHelper_h