Standardize usage of virtual/override/final specifiers in content/.

content/browser/streams/stream_unittest.cc

 // Copyright (c) 2013 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 "base/message_loop/message_loop.h"
 #include "base/test/test_simple_task_runner.h"
 #include "content/browser/streams/stream.h"
 #include "content/browser/streams/stream_read_observer.h"
 #include "content/browser/streams/stream_register_observer.h"
 #include "content/browser/streams/stream_registry.h"
@@ skipping 93 matching lines @@
   void OnClose(Stream* stream) override {}
 };
 
 class TestStreamObserver : public StreamRegisterObserver {
  public:
   TestStreamObserver(const GURL& url, StreamRegistry* registry)
       : url_(url), registry_(registry), registered_(false), stream_(nullptr) {
     registry->SetRegisterObserver(url, this);
   }
   ~TestStreamObserver() override { registry_->RemoveRegisterObserver(url_); }
-  virtual void OnStreamRegistered(Stream* stream) override {
+  void OnStreamRegistered(Stream* stream) override {
     registered_ = true;
     stream_ = stream;
   }
   bool registered() const { return registered_; }
   Stream* stream() const { return stream_; }
 
  private:
   const GURL url_;
   StreamRegistry* registry_;
   bool registered_;
@@ skipping 248 matching lines @@
 TEST_F(StreamTest, AbortPendingStream) {
   TestStreamWriter writer;
 
   GURL url("blob://stream");
   registry_->AbortPendingStream(url);
   scoped_refptr<Stream> stream1(new Stream(registry_.get(), &writer, url));
   ASSERT_EQ(nullptr, registry_->GetStream(url).get());
 }
 
 }  // namespace content