Make the FloatSize constructor from an IntSize explicit.

third_party/WebKit/Source/core/layout/shapes/BoxShapeTest.cpp

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 100 matching lines @@
  *                (--+---------+--)
  *           y=15 +--|         |-+ y=20
  *                |               |
  *                |               |
  *           y=85 + -|         |- + y=70
  *                (--+---------+--)
  *       (25, 15)  x=25      x=80  (20, 30)
  */
 TEST_F(BoxShapeTest, getIntervals)
 {
-    const FloatRoundedRect::Radii cornerRadii(IntSize(10, 15), IntSize(10, 20), IntSize(25, 15), IntSize(20, 30));
+    const FloatRoundedRect::Radii cornerRadii(FloatSize(10, 15), FloatSize(10, 20), FloatSize(25, 15), FloatSize(20, 30));
     OwnPtr<Shape> shape = createBoxShape(FloatRoundedRect(IntRect(0, 0, 100, 100), cornerRadii), 0);
     EXPECT_FALSE(shape->isEmpty());
 
     EXPECT_EQ(LayoutRect(0, 0, 100, 100), shape->shapeMarginLogicalBoundingBox());
 
     TEST_EXCLUDED_INTERVAL(shape, 10, 95, 0, 100);
     TEST_EXCLUDED_INTERVAL(shape, 5, 25, 0, 100);
     TEST_EXCLUDED_INTERVAL(shape, 15, 6, 0, 100);
     TEST_EXCLUDED_INTERVAL(shape, 20, 50, 0, 100);
     TEST_EXCLUDED_INTERVAL(shape, 69, 5, 0, 100);
     TEST_EXCLUDED_INTERVAL(shape, 85, 10, 0, 97.320511f);
 }
 
 } // anonymous namespace
 
 } // namespace blink