ozone: evdev: Move read polling into EventConverterEvdev

ui/events/ozone/evdev/libgestures_glue/event_reader_libevdev_cros.cc

 // 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.
 
 #include "ui/events/ozone/evdev/libgestures_glue/event_reader_libevdev_cros.h"
 
 #include <errno.h>
 #include <libevdev/libevdev.h>
 #include <linux/input.h>
 
@@ skipping 10 matching lines @@
   if (!msg.empty() && msg[msg.size() - 1] == '\n')
     msg.erase(msg.end() - 1, msg.end());
   return msg;
 }
 
 }  // namespace
 
 EventReaderLibevdevCros::EventReaderLibevdevCros(int fd,
                                                  const base::FilePath& path,
                                                  scoped_ptr<Delegate> delegate)
-    : path_(path), delegate_(delegate.Pass()) {
+    : EventConverterEvdev(fd, path), delegate_(delegate.Pass()) {
   memset(&evdev_, 0, sizeof(evdev_));
   evdev_.log = OnLogMessage;
   evdev_.log_udata = this;
   evdev_.syn_report = OnSynReport;
   evdev_.syn_report_udata = this;
   evdev_.fd = fd;
 
   memset(&evstate_, 0, sizeof(evstate_));
   evdev_.evstate = &evstate_;
   Event_Init(&evdev_);
 
   Event_Open(&evdev_);
 
   delegate_->OnLibEvdevCrosOpen(&evdev_, &evstate_);
 }
 
 EventReaderLibevdevCros::~EventReaderLibevdevCros() {
   Stop();
   EvdevClose(&evdev_);
 }
 
 EventReaderLibevdevCros::Delegate::~Delegate() {}
 
-void EventReaderLibevdevCros::Start() {
-  base::MessageLoopForUI::current()->WatchFileDescriptor(
-      evdev_.fd,
-      true,
-      base::MessagePumpLibevent::WATCH_READ,
-      &controller_,
-      this);
-}
-
-void EventReaderLibevdevCros::Stop() {
-  controller_.StopWatchingFileDescriptor();
-}
-
 void EventReaderLibevdevCros::OnFileCanReadWithoutBlocking(int fd) {
   if (EvdevRead(&evdev_)) {
     if (errno == EINTR || errno == EAGAIN)
       return;
     if (errno != ENODEV)
       PLOG(ERROR) << "error reading device " << path_.value();
     Stop();
     return;
   }
 }
 
-void EventReaderLibevdevCros::OnFileCanWriteWithoutBlocking(int fd) {
-  NOTREACHED();
-}
-
 // static
 void EventReaderLibevdevCros::OnSynReport(void* data,
                                           EventStateRec* evstate,
                                           struct timeval* tv) {
   EventReaderLibevdevCros* reader = static_cast<EventReaderLibevdevCros*>(data);
   reader->delegate_->OnLibEvdevCrosEvent(&reader->evdev_, evstate, *tv);
 }
 
 // static
 void EventReaderLibevdevCros::OnLogMessage(void* data,
                                            int level,
                                            const char* fmt,
                                            ...) {
   va_list args;
   va_start(args, fmt);
   if (level >= LOGLEVEL_ERROR)
     LOG(ERROR) << "libevdev: " << FormatLog(fmt, args);
   else if (level >= LOGLEVEL_WARNING)
     LOG(WARNING) << "libevdev: " << FormatLog(fmt, args);
   else
     VLOG(3) << "libevdev: " << FormatLog(fmt, args);
   va_end(args);
 }
 
 }  // namespace ui