Write mojom and StructTraits for DisplaySnapshot.

ui/display/mojo/display_snapshot_mojo.mojom

Index: ui/display/mojo/display_snapshot_mojo.mojom
diff --git a/ui/display/mojo/display_snapshot_mojo.mojom b/ui/display/mojo/display_snapshot_mojo.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..6982c803160a155fe4292d780e2fbe6424b9477c
--- /dev/null
+++ b/ui/display/mojo/display_snapshot_mojo.mojom
@@ -0,0 +1,28 @@
+// 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 display.mojom;
+
+import "mojo/common/file_path.mojom";
+import "ui/display/mojo/display_constants.mojom";
+import "ui/display/mojo/display_mode.mojom";
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+// Corresponds to display::DisplaySnapshotMojo
+struct DisplaySnapshotMojo {
+  int64 display_id;
+  gfx.mojom.Point origin;
+  gfx.mojom.Size physical_size;
+  display.mojom.DisplayConnectionType type;
+  bool is_aspect_preserving_scaling;
+  bool has_overscan;
+  bool has_color_correction_matrix;
+  string display_name;
+  mojo.common.mojom.FilePath sys_path;

[kylechar, 2017/02/10 21:40:29]

Very cool!

+  array<display.mojom.DisplayMode> modes;
+  array<uint8> edid;
+  int64 current_mode_index;

[kylechar, 2017/02/10 21:40:29]

uint64? is probably a more appropriate type. See comments in StructTraits.

[thanhph1, 2017/02/13 20:09:11]

Done.

+  int64 native_mode_index;
+  int64 product_id;

[kylechar, 2017/02/10 21:40:29]

You need all the fields in DisplaySnapshot, maximum_cursor_size_ is definitely
used.

https://cs.chromium.org/chromium/src/ui/display/manager/chromeos/display_chan...

[thanhph1, 2017/02/13 20:09:11]

Done.

+};