[aura-mus] Add ui::CursorData, with mojo serialization.

ui/base/cursor/cursor_data.cc

+// 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/base/cursor/cursor_data.h"
+
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/base/cursor/cursor.h"
+
+namespace ui {
+
+CursorData::CursorData() : cursor_type_(0), scale_factor_(0.0f) {}
+
+CursorData::CursorData(int type) : cursor_type_(type), scale_factor_(0.0f) {}
+
+CursorData::CursorData(const gfx::Point& hotspot_point,
+                       const std::vector<SkBitmap>& cursor_frames,
+                       float scale_factor,
+                       const base::TimeDelta& frame_delay)
+    : cursor_type_(kCursorCustom),
+      frame_delay_(frame_delay),
+      scale_factor_(scale_factor),
+      hotspot_(hotspot_point),
+      cursor_frames_(cursor_frames) {
+  for (SkBitmap& bitmap : cursor_frames_)
+    generator_ids_.push_back(bitmap.getGenerationID());
+}
+
+CursorData::CursorData(const CursorData& cursor) = default;
+
+CursorData::~CursorData() {}
+
+CursorData& CursorData::operator=(const CursorData& cursor) = default;
+
+bool CursorData::IsType(int cursor_type) const {
+  return cursor_type_ == cursor_type;
+}
+
+bool CursorData::IsSameAs(const CursorData& rhs) const {
+  return cursor_type_ == rhs.cursor_type_ && frame_delay_ == rhs.frame_delay_ &&
+         hotspot_ == rhs.hotspot_ && scale_factor_ == rhs.scale_factor_ &&
+         generator_ids_ == rhs.generator_ids_;
+}
+
+}  // namespace ui