Write mojom and StructTraits for DisplaySnapshot.

ui/display/display_snapshot_mojo.cc

Index: ui/display/display_snapshot_mojo.cc
diff --git a/ui/display/display_snapshot_mojo.cc b/ui/display/display_snapshot_mojo.cc
new file mode 100644
index 0000000000000000000000000000000000000000..be2262c59dc9944b60c1d58061ef0753e4ba0e58
--- /dev/null
+++ b/ui/display/display_snapshot_mojo.cc
@@ -0,0 +1,50 @@
+// 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.
+
+#include "ui/display/display_snapshot_mojo.h"
+
+#include "ui/display/types/display_constants.h"
+
+namespace display {
+
+DisplaySnapshotMojo::DisplaySnapshotMojo(int64_t display_id,
+                                         const gfx::Point& origin,
+                                         const gfx::Size& physical_size,
+                                         DisplayConnectionType type,
+                                         bool is_aspect_preserving_scaling,
+                                         bool has_overscan,
+                                         bool has_color_correction_matrix,
+                                         std::string display_name,
+                                         const base::FilePath& sys_path,
+                                         int64_t product_id,
+                                         DisplayModeList modes,
+                                         const std::vector<uint8_t>& edid,
+                                         const DisplayMode* current_mode,
+                                         const DisplayMode* native_mode,
+                                         const gfx::Size& maximum_cursor_size)
+    : DisplaySnapshot(display_id,
+                      origin,
+                      physical_size,
+                      type,
+                      is_aspect_preserving_scaling,
+                      has_overscan,
+                      has_color_correction_matrix,
+                      display_name,
+                      sys_path,
+                      std::move(modes),
+                      edid,
+                      current_mode,
+                      native_mode) {
+  product_id_ = product_id;
+  maximum_cursor_size_ = maximum_cursor_size;
+}
+
+DisplaySnapshotMojo::~DisplaySnapshotMojo() = default;
+
+// TODO(thanhph): What should ToString() output? Maybe for debugging purposes.

[kylechar, 2017/02/14 21:35:28]

The description of a TODO should be an action to do, eg.

TODO(thanhph): Implement ToString() for debugging purposes.

[thanhph1, 2017/02/15 15:37:55]

Done.

+std::string DisplaySnapshotMojo::ToString() const {
+  return "";
+}
+
+}  // namespace display