Add Double{Size, Point, Rect} pretty printers for logging and testing

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

 // 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.
 
 #ifndef DoubleSize_h
 #define DoubleSize_h
 
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/IntSize.h"
 #include "wtf/Allocator.h"
@@ skipping 33 matching lines @@
     {
         m_width = m_width * widthScale;
         m_height = m_height * heightScale;
     }
 
     void scale(float scale)
     {
         this->scale(scale, scale);
     }
 
-#ifndef NDEBUG
     String toString() const;
-#endif
 
 private:
     double m_width, m_height;
 };
 
 inline DoubleSize& operator+=(DoubleSize& a, const DoubleSize& b)
 {
     a.setWidth(a.width() + b.width());
     a.setHeight(a.height() + b.height());
     return a;
@@ skipping 39 matching lines @@
 inline IntSize expandedIntSize(const DoubleSize& p)
 {
     return IntSize(clampTo<int>(ceilf(p.width())), clampTo<int>(ceilf(p.height())));
 }
 
 inline FloatSize toFloatSize(const DoubleSize& p)
 {
     return FloatSize(p.width(), p.height());
 }
 
+// Redeclared here to avoid ODR issues.
+// See platform/testing/GeometryPrinters.h.
+void PrintTo(const DoubleSize&, std::ostream*);
+
 } // namespace blink
 
 #endif // DoubleSize_h