Track input latency while starting a ServiceWorker for a navigation hint.

content/browser/renderer_host/input/render_widget_host_latency_tracker.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_RENDER_WIDGET_HOST_LATENCY_TRACKER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_RENDER_WIDGET_HOST_LATENCY_TRACKER_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 37 matching lines @@
                        InputEventAckState ack_result);
 
   // Populates renderer-created LatencyInfo entries with the appropriate latency
   // component id. Called when the RenderWidgetHost receives a compositor swap
   // update from the renderer.
   void OnSwapCompositorFrame(std::vector<ui::LatencyInfo>* latencies);
 
   // Terminates latency tracking for events that triggered rendering, also
   // performing relevant UMA latency reporting.
   // Called when the RenderWidgetHost receives a swap update from the GPU.
-  void OnFrameSwapped(const ui::LatencyInfo& latency);
+  void OnFrameSwapped(const ui::LatencyInfo& latency,
+                      bool is_running_navigation_hint_task);
 
   // WebInputEvent coordinates are in DPIs, while LatencyInfo expects
   // coordinates in device pixels.
   void set_device_scale_factor(float device_scale_factor) {
     device_scale_factor_ = device_scale_factor;
   }
 
   // Returns the ID that uniquely describes this component to the latency
   // subsystem.
   int64_t latency_component_id() const { return latency_component_id_; }
 
  private:
   int64_t last_event_id_;
   int64_t latency_component_id_;
   float device_scale_factor_;
   bool has_seen_first_gesture_scroll_update_;
   // Whether the current stream of touch events has ever included more than one
   // touch point.
   bool multi_finger_gesture_;
   // Whether the touch start for the current stream of touch events had its
   // default action prevented. Only valid for single finger gestures.
   bool touch_start_default_prevented_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostLatencyTracker);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_RENDER_WIDGET_HOST_LATENCY_TRACKER_H_