Unify SurfaceInfo

cc/ipc/surface_info.mojom

Index: cc/ipc/surface_info.mojom
diff --git a/cc/ipc/surface_info.mojom b/cc/ipc/surface_info.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..490009ad08473d54fc31a7456b01ef25014e6145
--- /dev/null
+++ b/cc/ipc/surface_info.mojom
@@ -0,0 +1,17 @@
+// Copyright 2017 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.
+
+module cc.mojom;
+
+import "cc/ipc/surface_id.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Holds information about an embeddable surface. This data can be passed
+// across clients to embed the associated surface in another client.
+struct SurfaceInfo {
+  SurfaceId surface_id;
+  float device_scale_factor;
+  gfx.mojom.Size size_in_pixels;
+};
+