Extend the geometry APIs.

mojo/services/geometry/cpp/logging.cc

+// Copyright 2015 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 <ostream>
+
+#include "mojo/services/geometry/cpp/logging.h"
+
+namespace mojo {
+
+std::ostream& operator<<(std::ostream& os, const mojo::Point& value) {
+  return os << "{x=" << value.x << ", y=" << value.y << "}";
+}
+
+std::ostream& operator<<(std::ostream& os, const mojo::Size& value) {
+  return os << "{width=" << value.width << ", height=" << value.height << "}";
+}
+
+std::ostream& operator<<(std::ostream& os, const mojo::Rect& value) {
+  return os << "{x=" << value.x << ", y=" << value.y
+            << ", width=" << value.width << ", height=" << value.height << "}";
+}
+
+std::ostream& operator<<(std::ostream& os, const mojo::RRect& value) {
+  return os << "{x=" << value.x << ", y=" << value.y
+            << ", width=" << value.width << ", height=" << value.height
+            << ", top_left_radius_x=" << value.top_left_radius_x
+            << ", top_left_radius_y=" << value.top_left_radius_y
+            << ", top_right_radius_x=" << value.top_right_radius_x
+            << ", top_right_radius_y=" << value.top_right_radius_y
+            << ", bottom_left_radius_x=" << value.bottom_left_radius_x
+            << ", bottom_left_radius_y=" << value.bottom_left_radius_y
+            << ", bottom_right_radius_x=" << value.bottom_right_radius_x
+            << ", bottom_right_radius_y=" << value.bottom_right_radius_y << "}";
+}
+
+std::ostream& operator<<(std::ostream& os, const mojo::Transform& value) {
+  if (value.matrix) {
+    os << "[";
+    for (size_t i = 0; i < 4; i++) {
+      if (i != 0)
+        os << ", ";
+      os << "[";
+      for (size_t j = 0; j < 4; j++) {
+        if (j != 0)
+          os << ", ";
+        os << value.matrix[i * 4 + j];
+      }
+      os << "]";
+    }
+    os << "]";
+  } else {
+    os << "null";
+  }
+  return os;
+}
+
+}  // namespace mojo