Unify geometry test printers in a test support target.

Source/platform/geometry/FloatBoxTestHelpers.h

 /*
  * Copyright (C) 2014 Google Inc. 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef FloatBoxTestHelpers_h
 #define FloatBoxTestHelpers_h
 
 #include <gtest/gtest.h>
 namespace blink {
 class FloatBox;
 
-void PrintTo(const FloatBox&, ::std::ostream*);
 bool ApproximatelyEqual(const float&, const float&);
 
 namespace FloatBoxTest {
 bool ApproximatelyEqual(const float&, const float&);
 bool ApproximatelyEqual(const FloatBox&, const FloatBox&);
 ::testing::AssertionResult AssertAlmostEqual(const char*, const char*, const FloatBox&, const FloatBox&);
 ::testing::AssertionResult AssertContains(const char*, const char*, const FloatBox&, const FloatBox&);
 } // namespace FloatBoxTest
 } // namespace blink
 
 #endif // FloatBoxTestHelpers_h