evdev: Factor common code out of key & touch converters

ui/events/ozone/evdev/event_converter.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
+// 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_KEY_EVENT_CONVERTER_EVDEV_H_
-#define UI_EVENTS_OZONE_EVDEV_KEY_EVENT_CONVERTER_EVDEV_H_
+#ifndef UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_H_
+#define UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_H_
 
 #include "base/files/file_path.h"
 #include "ui/events/event.h"
 #include "ui/events/events_export.h"
 #include "ui/events/ozone/evdev/event_modifiers.h"
 #include "ui/events/ozone/event_converter_ozone.h"
 
 struct input_event;
 
 namespace ui {
 
-class EVENTS_EXPORT KeyEventConverterEvdev : public EventConverterOzone {
+class EVENTS_EXPORT EventConverterEvdev : public EventConverterOzone {
  public:
-  KeyEventConverterEvdev(int fd,
-                         base::FilePath path,
-                         EventModifiersEvdev* modifiers);
-  virtual ~KeyEventConverterEvdev();
+  EventConverterEvdev(int fd,
+                      base::FilePath path,
+                      EventModifiersEvdev* modifiers);
+  virtual ~EventConverterEvdev();
 
   // Overidden from base::MessagePumpLibevent::Watcher.
   virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
   virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
 
-  void ProcessEvents(const struct input_event* inputs, int count);
+ protected:
+  // Process & dispatch events read from the device.
+  virtual void ProcessEvents(const struct input_event* inputs, int count) = 0;
 
- private:
   // File descriptor for the /dev/input/event* instance.
   int fd_;
 
   // Path to input device.
   base::FilePath path_;
 
   // Shared modifier state.
   EventModifiersEvdev* modifiers_;
 
-  void ConvertKeyEvent(int key, int value);
-
-  DISALLOW_COPY_AND_ASSIGN(KeyEventConverterEvdev);
+ private:
+  DISALLOW_COPY_AND_ASSIGN(EventConverterEvdev);
 };
 
 }  // namspace ui
 
-#endif  // UI_EVENTS_OZONE_EVDEV_KEY_EVENT_CONVERTER_EVDEV_H_
-
+#endif  // UI_EVENTS_OZONE_EVDEV_EVENT_CONVERTER_H_