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

content/browser/fileapi/chrome_blob_storage_context.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/fileapi/chrome_blob_storage_context.h"
 
 #include "base/bind.h"
 #include "base/guid.h"
 #include "content/public/browser/blob_handle.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "storage/browser/blob/blob_data_handle.h"
 #include "storage/browser/blob/blob_storage_context.h"
 
 using base::UserDataAdapter;
 using storage::BlobStorageContext;
 
 namespace content {
 
 namespace {
 
 const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
 
 class BlobHandleImpl : public BlobHandle {
  public:
   explicit BlobHandleImpl(scoped_ptr<storage::BlobDataHandle> handle)
       : handle_(handle.Pass()) {
   }
 
-  virtual ~BlobHandleImpl() {}
+  ~BlobHandleImpl() override {}
 
-  virtual std::string GetUUID() override {
-    return handle_->uuid();
-  }
+  std::string GetUUID() override { return handle_->uuid(); }
 
  private:
   scoped_ptr<storage::BlobDataHandle> handle_;
 };
 
 }  // namespace
 
 ChromeBlobStorageContext::ChromeBlobStorageContext() {}
 
 ChromeBlobStorageContext* ChromeBlobStorageContext::GetFor(
@@ skipping 44 matching lines @@
 void ChromeBlobStorageContext::DeleteOnCorrectThread() const {
   if (BrowserThread::IsMessageLoopValid(BrowserThread::IO) &&
       !BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, this);
     return;
   }
   delete this;
 }
 
 }  // namespace content