Update from https://crrev.com/309717

cc/scheduler/scheduler_unittest.cc

 // Copyright 2011 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 "cc/scheduler/scheduler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/debug/trace_event.h"
@@ skipping 41 matching lines @@
 namespace {
 
 class FakeSchedulerClient;
 
 class FakeSchedulerClient : public SchedulerClient {
  public:
   class FakeExternalBeginFrameSource : public BeginFrameSourceMixIn {
    public:
     explicit FakeExternalBeginFrameSource(FakeSchedulerClient* client)
         : client_(client) {}
-    virtual ~FakeExternalBeginFrameSource() {}
+    ~FakeExternalBeginFrameSource() override {}
 
     void OnNeedsBeginFramesChange(bool needs_begin_frames) override {
       if (needs_begin_frames) {
         client_->PushAction("SetNeedsBeginFrames(true)");
       } else {
         client_->PushAction("SetNeedsBeginFrames(false)");
       }
       client_->states_.push_back(client_->scheduler_->AsValue());
     }
 
@@ skipping 2122 matching lines @@
 
   // Deadline task is pending
   EXPECT_TRUE(scheduler->BeginImplFrameDeadlinePending());
   client.task_runner().RunPendingTasks();
   // Deadline task runs immediately
   EXPECT_FALSE(scheduler->BeginImplFrameDeadlinePending());
 }
 
 }  // namespace
 }  // namespace cc