Mojo C++ bindings: make String16 and gfx::Size available in Blink

third_party/WebKit/Source/platform/mojo/WebGeometryStructTraits.h

+// 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.
+
+#ifndef WebGeometryStructTraits_h
+#define WebGeometryStructTraits_h
+
+#include "public/platform/WebSize.h"
+#include "ui/gfx/geometry/mojo/geometry.mojom-blink.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<gfx::mojom::blink::Size::DataView, ::blink::WebSize> {
+  static int width(const ::blink::WebSize& size) { return size.width; }
+  static int height(const ::blink::WebSize& size) { return size.height; }
+  static bool Read(gfx::mojom::blink::Size::DataView data,

[Ken Rockot(use gerrit already), 2016/10/04 18:20:29]

nit: Probably should move this out-of-line.

[Zhiqiang Zhang (Slow), 2016/10/04 20:06:22]

Done.

+                   ::blink::WebSize* out) {
+    if (data.width() < 0 || data.height() < 0)
+      return false;
+    out->width = data.width();
+    out->height = data.height();
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // WebGeometryStructTraits_h