Remove LatencyInfo::sequence_number. (May break metrics).

content/browser/renderer_host/input/mouse_wheel_event_queue.cc

 // Copyright 2016 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 "content/browser/renderer_host/input/mouse_wheel_event_queue.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/events/base_event_utils.h"
@@ skipping 164 matching lines @@
 
     if (enable_scroll_latching_) {
       if (event_sent_for_gesture_ack_->event.phase ==
           blink::WebMouseWheelEvent::kPhaseBegan) {
         SendScrollBegin(scroll_update, false);
       }
 
       if (needs_update) {
         ui::LatencyInfo latency = ui::LatencyInfo(ui::SourceEventType::WHEEL);
         latency.AddLatencyNumber(
-            ui::INPUT_EVENT_LATENCY_GENERATE_SCROLL_UPDATE_FROM_MOUSE_WHEEL, 0,
-            0);
+            ui::INPUT_EVENT_LATENCY_GENERATE_SCROLL_UPDATE_FROM_MOUSE_WHEEL, 0);
         client_->ForwardGestureEventWithLatencyInfo(scroll_update, latency);
       }
 
       if (current_phase_ended) {
         // Send GSE with if scroll latching is enabled and no fling is going
         // to happen next.
         SendScrollEnd(scroll_update, false);
       }
     } else {  // !enable_scroll_latching_
 
@@ skipping 12 matching lines @@
           // If a GSB has been sent, generate a synthetic GSB if we have phase
           // information. This should be removed once crbug.com/526463 is
           // fully implemented.
           SendScrollBegin(scroll_update, true);
         }
 
         if (needs_update) {
           ui::LatencyInfo latency = ui::LatencyInfo(ui::SourceEventType::WHEEL);
           latency.AddLatencyNumber(
               ui::INPUT_EVENT_LATENCY_GENERATE_SCROLL_UPDATE_FROM_MOUSE_WHEEL,
-              0, 0);
+              0);
           client_->ForwardGestureEventWithLatencyInfo(scroll_update, latency);
         }
 
         if (current_phase_ended) {
           // Non-synthetic GSEs are sent when the current phase is canceled or
           // ended.
           SendScrollEnd(scroll_update, false);
         } else if (has_phase_info) {
           // Generate a synthetic GSE for every update to force hit testing so
           // that the non-latching behavior is preserved. Remove once
@@ skipping 81 matching lines @@
   scroll_begin.data.scroll_begin.delta_hint_units =
       gesture_update.data.scroll_update.delta_units;
 
   needs_scroll_begin_ = false;
   needs_scroll_end_ = true;
   client_->ForwardGestureEventWithLatencyInfo(
       scroll_begin, ui::LatencyInfo(ui::SourceEventType::WHEEL));
 }
 
 }  // namespace content