Add platform/geometry pretty printers for logging and testing

third_party/WebKit/Source/platform/testing/PictureMatchers.cpp

 // Copyright 2016 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.
 
 #include "platform/testing/PictureMatchers.h"
 
 #include "platform/geometry/FloatQuad.h"
 #include "platform/geometry/FloatRect.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
@@ skipping 32 matching lines @@
         const auto& quads = canvas.quads();
 
         if (quads.size() != 1) {
             *listener << "which draws " << quads.size() << " quads";
             return false;
         }
 
         const FloatQuad& quad = quads[0].first;
         if (!quad.isRectilinear()) {
             if (listener->IsInterested()) {
-                *listener << "which draws ";
-                PrintTo(quad, listener->stream());
-                *listener << " with color " << quads[0].second.serialized().ascii().data();
+                *listener << "which draws " << quad
+                    << " with color " << quads[0].second.serialized().ascii().data();
             }
             return false;
         }
 
         const FloatRect& rect = quad.boundingBox();
         if (rect != m_rect || quads[0].second != m_color) {
             if (listener->IsInterested()) {
-                *listener << "which draws ";
-                PrintTo(rect, listener->stream());
-                *listener << " with color " << quads[0].second.serialized().ascii().data();
+                *listener << "which draws " << rect
+                    << " with color " << quads[0].second.serialized().ascii().data();
             }
             return false;
         }
 
         return true;
     }
 
     void DescribeTo(::std::ostream* os) const override
     {
-        *os << "draws ";
-        PrintTo(m_rect, os);
-        *os << " with color " << m_color.serialized().ascii().data();
+        *os << "draws " << m_rect
+            << " with color " << m_color.serialized().ascii().data();
     }
 
 private:
     const FloatRect m_rect;
     const Color m_color;
 };
 
 } // namespace
 
 ::testing::Matcher<const SkPicture&> drawsRectangle(const FloatRect& rect, Color color)
 {
     return ::testing::MakeMatcher(new DrawsRectangleMatcher(rect, color));
 }
 
 } // namespace blink