Add InputEvent and EventPacket types for batched input delivery

content/common/input/web_platform_input_event.h

+// Copyright (c) 2013 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.
+
+#ifndef CONTENT_COMMON_INPUT_WEB_PLATFORM_INPUT_EVENT_H_
+#define CONTENT_COMMON_INPUT_WEB_PLATFORM_INPUT_EVENT_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+#include "content/common/input/input_event.h"
+#include "ui/base/latency_info.h"
+
+namespace WebKit {
+class WebInputEvent;
+}
+
+namespace content {
+
+// An event based on a WebKit::WebInputEvent.
+class CONTENT_EXPORT WebPlatformInputEvent : public InputEvent {
+ public:
+  static scoped_ptr<WebPlatformInputEvent> Create();
+  static scoped_ptr<WebPlatformInputEvent> Create(
+      int64 id,
+      const WebKit::WebInputEvent& event,
+      const ui::LatencyInfo& latency_info,
+      bool is_keyboard_shortcut,
+      bool creates_followup_events);
+
+  virtual ~WebPlatformInputEvent();
+
+  void Initialize(const WebKit::WebInputEvent& event,
+                  const ui::LatencyInfo& latency_info,
+                  bool is_keyboard_shortcut);
+
+  // WebKit::WebInputEvent does not provide a virtual destructor.
+  struct WebInputEventDeleter {
+    WebInputEventDeleter();
+    void operator()(WebKit::WebInputEvent* event) const;
+  };
+  typedef scoped_ptr<WebKit::WebInputEvent,
+                     WebInputEventDeleter> ScopedWebInputEvent;
+
+  ScopedWebInputEvent event;
+  ui::LatencyInfo latency_info;
+  bool is_keyboard_shortcut;
+
+  static const WebPlatformInputEvent* EventCast(const InputEvent* event);
+
+protected:
+  explicit WebPlatformInputEvent(AckType ack_type, int64 id);
+};
+
+}  // namespace content
+
+#endif // CONTENT_COMMON_INPUT_WEB_PLATFORM_INPUT_EVENT_H_