[Ozone-GBM] Add basic support for display configuration over IPC

ui/ozone/common/chromeos/display_util.cc

Index: ui/ozone/common/chromeos/display_util.cc
diff --git a/ui/ozone/common/chromeos/display_util.cc b/ui/ozone/common/chromeos/display_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..674f8c1d243c6251084de4bb74b80634348803ea
--- /dev/null
+++ b/ui/ozone/common/chromeos/display_util.cc
@@ -0,0 +1,48 @@
+// Copyright 2014 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/ozone/common/chromeos/display_util.h"
+
+#include "ui/display/types/chromeos/display_mode.h"
+#include "ui/display/types/chromeos/display_snapshot.h"
+
+namespace ui {
+
+DisplayMode_Params GetDisplayModeParams(const DisplayMode& mode) {
+  DisplayMode_Params params;
+  params.size = mode.size();
+  params.is_interlaced = mode.is_interlaced();
+  params.refresh_rate = mode.refresh_rate();
+
+  return params;
+}
+
+DisplaySnapshot_Params GetDisplaySnapshotParams(
+    const DisplaySnapshot& display) {
+  DisplaySnapshot_Params params;
+  params.display_id = display.display_id();
+  params.has_proper_display_id = display.has_proper_display_id();
+  params.origin = display.origin();
+  params.physical_size = display.physical_size();
+  params.type = display.type();
+  params.is_aspect_preserving_scaling = display.is_aspect_preserving_scaling();
+  params.has_overscan = display.has_overscan();
+  params.display_name = display.display_name();
+  for (size_t i = 0; i < display.modes().size(); ++i)
+    params.modes.push_back(GetDisplayModeParams(*display.modes()[i]));
+
+  params.has_current_mode = display.current_mode() != NULL;
+  if (params.has_current_mode)
+    params.current_mode = GetDisplayModeParams(*display.current_mode());
+
+  params.has_native_mode = display.native_mode() != NULL;
+  if (params.has_native_mode)
+    params.native_mode = GetDisplayModeParams(*display.native_mode());
+
+  params.string_representation = display.ToString();
+
+  return params;
+}
+
+}  // namespace ui