evdev: Factor common code out of key & touch converters

ui/events/ozone/evdev/key_event_converter.cc

 // Copyright 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.
 
 #include "ui/events/ozone/evdev/key_event_converter.h"
 
 #include <linux/input.h>
 
 #include "ui/events/event.h"
 #include "ui/events/keycodes/keyboard_codes.h"
@@ skipping 169 matching lines @@
   }
 }
 
 bool IsLockButton(unsigned int code) { return code == KEY_CAPSLOCK; }
 
 }  // namespace
 
 KeyEventConverterEvdev::KeyEventConverterEvdev(int fd,
                                                base::FilePath path,
                                                EventModifiersEvdev* modifiers)
-    : fd_(fd), path_(path), modifiers_(modifiers) {
+    : EventConverterEvdev(fd, path, modifiers) {
   // TODO(spang): Initialize modifiers using EVIOCGKEY.
 }
 
-KeyEventConverterEvdev::~KeyEventConverterEvdev() {
-  if (fd_ >= 0 && close(fd_) < 0)
-    DLOG(WARNING) << "failed close on " << path_.value();
-}
-
-void KeyEventConverterEvdev::OnFileCanReadWithoutBlocking(int fd) {
-  input_event inputs[4];
-  ssize_t read_size = read(fd, inputs, sizeof(inputs));
-  if (read_size <= 0)
-    return;
-
-  CHECK_EQ(read_size % sizeof(*inputs), 0u);
-  ProcessEvents(inputs, read_size / sizeof(*inputs));
-}
-
-void KeyEventConverterEvdev::OnFileCanWriteWithoutBlocking(int fd) {
-  NOTREACHED();
-}
+KeyEventConverterEvdev::~KeyEventConverterEvdev() {}
 
 void KeyEventConverterEvdev::ProcessEvents(const input_event* inputs,
                                            int count) {
   for (int i = 0; i < count; ++i) {
     const input_event& input = inputs[i];
     if (input.type == EV_KEY) {
       ConvertKeyEvent(input.code, input.value);
     } else if (input.type == EV_SYN) {
       // TODO(sadrul): Handle this case appropriately.
     }
@@ skipping 17 matching lines @@
   }
 
   int flags = modifiers_->GetModifierFlags();
 
   scoped_ptr<KeyEvent> key_event(
       new KeyEvent(down ? ET_KEY_PRESSED : ET_KEY_RELEASED, code, flags, true));
   DispatchEvent(key_event.PassAs<ui::Event>());
 }
 
 }  // namespace ui