Port Chromium OS touch noise filtering to Chromium

ui/events/ozone/evdev/touch_event_converter_evdev.h

 // 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.
 
 #ifndef UI_EVENTS_OZONE_EVDEV_TOUCH_EVENT_CONVERTER_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_TOUCH_EVENT_CONVERTER_EVDEV_H_
 
 #include <bitset>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_pump_libevent.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/ozone/evdev/event_converter_evdev.h"
 #include "ui/events/ozone/evdev/event_device_info.h"
 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
 
 namespace ui {
 
 class TouchEvent;
+class TouchNoiseRemover;
 
 class DeviceEventDispatcherEvdev;
 
 class EVENTS_OZONE_EVDEV_EXPORT TouchEventConverterEvdev
     : public EventConverterEvdev {
  public:
   enum { MAX_FINGERS = 20 };
   TouchEventConverterEvdev(int fd,
                            base::FilePath path,
                            int id,
@@ skipping 29 matching lines @@
 
   // Overidden from base::MessagePumpLibevent::Watcher.
   void OnFileCanReadWithoutBlocking(int fd) override;
 
   virtual bool Reinitialize();
 
   void ProcessInputEvent(const input_event& input);
   void ProcessAbs(const input_event& input);
   void ProcessSyn(const input_event& input);
 
-  void ReportEvent(int touch_id,
-      const InProgressEvents& event, const base::TimeDelta& delta);
   void ReportEvents(base::TimeDelta delta);
 
   // Dispatcher for events.
   DeviceEventDispatcherEvdev* dispatcher_;
 
   // Set if we have seen a SYN_DROPPED and not yet re-synced with the device.
   bool syn_dropped_;
 
   // Set if this is a type A device (uses SYN_MT_REPORT).
   bool is_type_a_;
@@ skipping 15 matching lines @@
 
   // Number of touch points reported by driver
   int touch_points_;
 
   // Touch point currently being updated from the /dev/input/event* stream.
   size_t current_slot_;
 
   // In-progress touch points.
   std::vector<InProgressEvents> events_;
 
+  // Filters out touch noise.
+  scoped_ptr<TouchNoiseRemover> touch_noise_remover_;
+
   DISALLOW_COPY_AND_ASSIGN(TouchEventConverterEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_EVENT_CONVERTER_EVDEV_H_