cc: Replace the WebCore::UnitBezier class with the SkUnitCubicInterp() method from Skia.

webkit/compositor_bindings/web_float_animation_curve_unittest.cc

 // Copyright 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 "config.h"
 
 #include "web_float_animation_curve_impl.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/timing_function.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 85 matching lines @@
 // Tests that a cubic bezier timing function works as expected.
 TEST(WebFloatAnimationCurveTest, CubicBezierTimingFunction)
 {
     scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl);
     curve->add(WebFloatKeyframe(0, 0), 0.25, 0, 0.75, 1);
     curve->add(WebFloatKeyframe(1, 1), WebAnimationCurve::TimingFunctionTypeLinear);
 
     EXPECT_FLOAT_EQ(0, curve->getValue(0));
     EXPECT_LT(0, curve->getValue(0.25));
     EXPECT_GT(0.25, curve->getValue(0.25));
-    EXPECT_FLOAT_EQ(0.5, curve->getValue(0.5));
+    EXPECT_NEAR(curve->getValue(0.5), 0.5, 0.00015);
     EXPECT_LT(0.75, curve->getValue(0.75));
     EXPECT_GT(1, curve->getValue(0.75));
     EXPECT_FLOAT_EQ(1, curve->getValue(1));
 }
 
 // Tests that an ease timing function works as expected.
 TEST(WebFloatAnimationCurveTest, EaseTimingFunction)
 {
     scoped_ptr<WebFloatAnimationCurve> curve(new WebFloatAnimationCurveImpl);
     curve->add(WebFloatKeyframe(0, 0), WebAnimationCurve::TimingFunctionTypeEase);
@@ skipping 87 matching lines @@
     curve->add(WebFloatKeyframe(1, 1), WebAnimationCurve::TimingFunctionTypeLinear);
 
     scoped_ptr<cc::TimingFunction> timingFunction(cc::EaseTimingFunction::create());
     for (int i = 0; i <= 4; ++i) {
         const double time = i * 0.25;
         EXPECT_FLOAT_EQ(timingFunction->getValue(time), curve->getValue(time));
     }
 }
 
 } // namespace