ozone: evdev: Add a couple more trace events

Add trace event inside each read notification for evdev.

BUG=none
TEST=chrome://tracing in link_freon

Review URL: https://codereview.chromium.org/1110693003

Cr-Commit-Position: refs/heads/master@{#327110}
void TouchEventConverterEvdev::ReportEvent(const InProgressTouchEvdev& event,
                                           EventType event_type,
                                           const base::TimeDelta& timestamp) {
  dispatcher_->DispatchTouchEvent(TouchEventParams(
      input_device_.id, event.slot, event_type, gfx::PointF(event.x, event.y),
      gfx::Vector2dF(event.radius_x, event.radius_y), event.pressure,
      timestamp));
}

void TouchEventConverterEvdev::ReportEvent(const InProgressTouchEvdev& event,
                                           EventType event_type,
                                           const base::TimeDelta& timestamp) {
  dispatcher_->DispatchTouchEvent(TouchEventParams(
      input_device_.id, event.slot, event_type, gfx::PointF(event.x, event.y),
      gfx::Vector2dF(event.radius_x, event.radius_y), event.pressure,
      timestamp));
}
