ozone: evdev: Use kernel timestamps for mouse events

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 50 matching lines @@
   for (int i = 0; i < count; ++i) {
     const input_event& input = inputs[i];
     switch (input.type) {
       case EV_KEY:
         ConvertKeyEvent(input);
         break;
       case EV_ABS:
         ConvertAbsEvent(input);
         break;
       case EV_SYN:
-        FlushEvents();
+        FlushEvents(input);
         break;
     }
   }
 }
 
 void TabletEventConverterEvdev::ConvertKeyEvent(const input_event& input) {
   // Only handle other events if we have a stylus in proximity
   if (input.code >= BTN_TOOL_PEN && input.code <= BTN_TOOL_LENS) {
     if (input.value == 1)
       stylus_ = input.code;
@@ skipping 56 matching lines @@
     return;
 
   if (abs_value_dirty_) {
     UpdateCursor();
     abs_value_dirty_ = false;
   }
 
   bool down = input.value;
 
   dispatcher_->DispatchMouseButtonEvent(MouseButtonEventParams(
-      id_, cursor_->GetLocation(), button, down, false /* allow_remap */));
+      id_, cursor_->GetLocation(), button, down, false /* allow_remap */,
+      TimeDeltaFromInputEvent(input)));
 }
 
-void TabletEventConverterEvdev::FlushEvents() {
+void TabletEventConverterEvdev::FlushEvents(const input_event& input) {
   if (!cursor_)
     return;
 
   // Prevent propagation of invalid data on stylus lift off
   if (stylus_ == 0) {
     abs_value_dirty_ = false;
     return;
   }
 
   if (!abs_value_dirty_)
     return;
 
   UpdateCursor();
 
-  dispatcher_->DispatchMouseMoveEvent(
-      MouseMoveEventParams(id_, cursor_->GetLocation()));
+  dispatcher_->DispatchMouseMoveEvent(MouseMoveEventParams(
+      id_, cursor_->GetLocation(), TimeDeltaFromInputEvent(input)));
 
   abs_value_dirty_ = false;
 }
 
 }  // namespace ui