Provide gtest printers for ui/gfx geometry types

ui/gfx/geometry/point.h

 // Copyright (c) 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.
 
 #ifndef UI_GFX_GEOMETRY_POINT_H_
 #define UI_GFX_GEOMETRY_POINT_H_
 
+#include <iosfwd>
+#include <string>
+
 #include "ui/gfx/geometry/point_base.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/gfx_export.h"
 
 #if defined(OS_WIN)
 typedef unsigned long DWORD;
 typedef struct tagPOINT POINT;
 #elif defined(OS_IOS)
 #include <CoreGraphics/CoreGraphics.h>
@@ skipping 60 matching lines @@
 }
 
 inline Point PointAtOffsetFromOrigin(const Vector2d& offset_from_origin) {
   return Point(offset_from_origin.x(), offset_from_origin.y());
 }
 
 #if !defined(COMPILER_MSVC)
 extern template class PointBase<Point, int, Vector2d>;
 #endif
 
+// This is declared here for use in gtest-based unit tests but is defined in
+// the gfx_test_support target. Depend on that to use this in your unit test.
+// This should not be used in production code - call ToString() instead.
+void PrintTo(const Point& point, ::std::ostream* os);
+
 }  // namespace gfx
 
 #endif  // UI_GFX_GEOMETRY_POINT_H_