Change ui::Event::time_stamp from TimeDelta to TimeTicks

content/browser/media/capture/cursor_renderer_aura.cc

 // Copyright (c) 2015 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/media/capture/cursor_renderer_aura.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 102 matching lines @@
       // Return early if the target window is not active.
       DVLOG(2) << "Skipping update on an inactive window";
       Clear();
       return false;
     }
   }
 
   if (cursor_display_setting_ == kCursorEnabledOnMouseMovement) {
     if (cursor_displayed_) {
       // Stop displaying cursor if there has been no mouse movement
-      base::TimeDelta now = tick_clock_->NowTicks() - base::TimeTicks();
+      base::TimeTicks now = tick_clock_->NowTicks();
       if ((now - last_mouse_movement_timestamp_) >
           base::TimeDelta::FromSeconds(MAX_IDLE_TIME_SECONDS)) {
         cursor_displayed_ = false;
         DVLOG(2) << "Turning off cursor display after idle time";
       }
     }
     if (!cursor_displayed_)
       return false;
   }
 
@@ skipping 112 matching lines @@
 
 void CursorRendererAura::OnWindowDestroying(aura::Window* window) {
   DCHECK_EQ(window_, window);
   if (cursor_display_setting_ == kCursorEnabledOnMouseMovement)
     window_->RemovePreTargetHandler(this);
   window_->RemoveObserver(this);
   window_ = nullptr;
 }
 
 }  // namespace content