Switch from PrintTo to operator<< for platform printers

third_party/WebKit/Source/platform/geometry/DoublePoint.h

 
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DoublePoint_h
 #define DoublePoint_h
 
 #include "platform/geometry/DoubleSize.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/IntPoint.h"
@@ skipping 156 matching lines @@
 inline FloatPoint toFloatPoint(const DoublePoint& a)
 {
     return FloatPoint(a.x(), a.y());
 }
 
 inline DoubleSize toDoubleSize(const DoublePoint& a)
 {
     return DoubleSize(a.x(), a.y());
 }
 
-// Redeclared here to avoid ODR issues.
-// See platform/testing/GeometryPrinters.h.
-void PrintTo(const DoublePoint&, std::ostream*);
+PLATFORM_EXPORT std::ostream& operator<<(std::ostream&, const DoublePoint&);
 
 } // namespace blink
 
 #endif