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

ui/ozone/common/chromeos/display_snapshot_proxy.cc

Index: ui/ozone/common/chromeos/display_snapshot_proxy.cc
diff --git a/ui/ozone/common/chromeos/display_snapshot_proxy.cc b/ui/ozone/common/chromeos/display_snapshot_proxy.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f634ccf5ca846014475144f1d96bd4c5ab39cf93
--- /dev/null
+++ b/ui/ozone/common/chromeos/display_snapshot_proxy.cc
@@ -0,0 +1,53 @@
+// 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_snapshot_proxy.h"
+
+#include "ui/ozone/common/chromeos/display_mode_proxy.h"
+#include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
+
+namespace ui {
+
+namespace {
+
+bool SameModes(const DisplayMode_Params& lhs, const DisplayMode_Params& rhs) {
+  return lhs.size == rhs.size && lhs.is_interlaced == rhs.is_interlaced &&
+      lhs.refresh_rate == rhs.refresh_rate;
+}
+
+}  // namespace
+
+DisplaySnapshotProxy::DisplaySnapshotProxy(const DisplaySnapshot_Params& params)
+    : DisplaySnapshot(params.display_id,
+                      params.has_proper_display_id,
+                      params.origin,
+                      params.physical_size,
+                      params.type,
+                      params.is_aspect_preserving_scaling,
+                      params.has_overscan,
+                      params.display_name,
+                      std::vector<const DisplayMode*>(),
+                      NULL,
+                      NULL),
+      string_representation_(params.string_representation) {
+  for (size_t i = 0; i < params.modes.size(); ++i) {
+    modes_.push_back(new DisplayModeProxy(params.modes[i]));
+
+    if (params.has_current_mode &&
+        SameModes(params.modes[i], params.current_mode))
+      current_mode_ = modes_.back();
+
+    if (params.has_native_mode &&
+        SameModes(params.modes[i], params.native_mode))
+      native_mode_ = modes_.back();
+  }
+}
+
+DisplaySnapshotProxy::~DisplaySnapshotProxy() {}
+
+std::string DisplaySnapshotProxy::ToString() const {
+  return string_representation_;
+}
+
+}  // namespace ui