Use EXPECT_FLOAT_EQ for points equality test.

cc/quads/draw_polygon_unittest.cc

 // Copyright 2014 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 <limits>
 #include <vector>
 
 #include "cc/output/bsp_compare_result.h"
 #include "cc/quads/draw_polygon.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 namespace {
 
 #define CREATE_NEW_DRAW_POLYGON(name, points_vector, normal, polygon_id) \
   DrawPolygon name(NULL, points_vector, normal, polygon_id)
 
 #define EXPECT_FLOAT_WITHIN_EPSILON_OF(a, b) \
   EXPECT_TRUE(std::abs(a - b) < std::numeric_limits<float>::epsilon());
 
+#define EXPECT_POINT_EQ(point_a, point_b)    \
+  EXPECT_FLOAT_EQ(point_a.x(), point_b.x()); \
+  EXPECT_FLOAT_EQ(point_a.y(), point_b.y()); \
+  EXPECT_FLOAT_EQ(point_a.z(), point_b.z());
+
 static void ValidatePoints(const DrawPolygon& polygon,
                            const std::vector<gfx::Point3F>& points) {
   EXPECT_EQ(polygon.points().size(), points.size());
   for (size_t i = 0; i < points.size(); i++) {
-    EXPECT_EQ(polygon.points()[i], points[i]);
+    EXPECT_POINT_EQ(polygon.points()[i], points[i]);
   }
 }
 
 // Two quads are definitely not touching and so no split should occur.
 TEST(DrawPolygonSplitTest, NotTouchingNoSplit) {
   std::vector<gfx::Point3F> vertices_a;
   vertices_a.push_back(gfx::Point3F(0.0f, 10.0f, 0.0f));
   vertices_a.push_back(gfx::Point3F(0.0f, 0.0f, 0.0f));
   vertices_a.push_back(gfx::Point3F(10.0f, 0.0f, 0.0f));
   vertices_a.push_back(gfx::Point3F(10.0f, 10.0f, 0.0f));
@@ skipping 139 matching lines @@
   // because some architectures (e.g., Arm64) employ a fused multiply-add
   // instruction which causes rounding asymmetry and reduces precision.
   // http://crbug.com/401117.
   EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().x(), 0);
   EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().y(), 0);
   EXPECT_FLOAT_WITHIN_EPSILON_OF(polygon_a.normal().z(), -1);
 }
 
 }  // namespace
 }  // namespace cc