Port ScopedDisableInternalMouseAndKeyboardX11 to Ozone

ui/events/ozone/evdev/tablet_event_converter_evdev.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/tablet_event_converter_evdev.h"
 
 #include <errno.h>
 #include <linux/input.h>
 
 #include "base/message_loop/message_loop.h"
@@ skipping 32 matching lines @@
   ssize_t read_size = read(fd, inputs, sizeof(inputs));
   if (read_size < 0) {
     if (errno == EINTR || errno == EAGAIN)
       return;
     if (errno != ENODEV)
       PLOG(ERROR) << "error reading device " << path_.value();
     Stop();
     return;
   }
 
+  if (ignore_events_)
+    return;
+
   DCHECK_EQ(read_size % sizeof(*inputs), 0u);
   ProcessEvents(inputs, read_size / sizeof(*inputs));
 }
 
 void TabletEventConverterEvdev::ProcessEvents(const input_event* inputs,
                                               int count) {
   for (int i = 0; i < count; ++i) {
     const input_event& input = inputs[i];
     switch (input.type) {
       case EV_KEY:
@@ skipping 102 matching lines @@
 
   callback_.Run(make_scoped_ptr(
       new MouseEvent(ui::ET_MOUSE_MOVED, cursor_->GetLocation(),
                      cursor_->GetLocation(), modifiers_->GetModifierFlags(),
                      /* changed_button_flags */ 0)));
 
   abs_value_dirty_ = false;
 }
 
 }  // namespace ui