Create PaintChunk and begin writing code to build paint chunks.

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

+// 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 "config.h"
+#include "platform/testing/PaintPrinters.h"
+
+#include "platform/graphics/paint/PaintChunk.h"
+#include "platform/graphics/paint/PaintProperties.h"
+#include <ostream> // NOLINT
+
+namespace blink {
+
+void PrintTo(const PaintChunk& chunk, std::ostream* os)
+{
+    *os << "PaintChunk(begin=" << chunk.beginIndex
+        << ", end=" << chunk.endIndex
+        << ", props=";
+    PrintTo(chunk.properties, os);
+    *os << ")";
+}
+
+void PrintTo(const PaintProperties& properties, std::ostream* os)
+{
+    *os << "PaintProperties()";
+}
+
+} // namespace blink