Standardize usage of virtual/override/final in content/browser/

content/browser/devtools/devtools_tracing_handler.cc

 // Copyright (c) 2012 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/devtools/devtools_tracing_handler.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/debug/trace_event_impl.h"
@@ skipping 14 matching lines @@
 const char kRecordUntilFull[]   = "record-until-full";
 const char kRecordContinuously[] = "record-continuously";
 const char kRecordAsMuchAsPossible[] = "record-as-much-as-possible";
 const char kEnableSampling[] = "enable-sampling";
 
 class DevToolsTraceSinkProxy : public TracingController::TraceDataSink {
  public:
   explicit DevToolsTraceSinkProxy(base::WeakPtr<DevToolsTracingHandler> handler)
       : tracing_handler_(handler) {}
 
-  virtual void AddTraceChunk(const std::string& chunk) override {
+  void AddTraceChunk(const std::string& chunk) override {
     if (DevToolsTracingHandler* h = tracing_handler_.get())
       h->OnTraceDataCollected(chunk);
   }
-  virtual void Close() override {
+  void Close() override {
     if (DevToolsTracingHandler* h = tracing_handler_.get())
       h->OnTraceComplete();
   }
 
  private:
-  virtual ~DevToolsTraceSinkProxy() {}
+  ~DevToolsTraceSinkProxy() override {}
 
   base::WeakPtr<DevToolsTracingHandler> tracing_handler_;
 };
 
 }  // namespace
 
 const char* DevToolsTracingHandler::kDefaultCategories =
     "-*,disabled-by-default-devtools.timeline*";
 const double DevToolsTracingHandler::kDefaultReportingInterval = 1000.0;
 const double DevToolsTracingHandler::kMinimumReportingInterval = 250.0;
@@ skipping 176 matching lines @@
        it != category_set.end(); ++it) {
     category_list->AppendString(*it);
   }
 
   response->Set(devtools::Tracing::getCategories::kResponseCategories,
                 category_list);
   SendAsyncResponse(command->SuccessResponse(response));
 }
 
 }  // namespace content