Make WebTaskRunner ThreadSafeRefCounted

third_party/WebKit/Source/core/fetch/MockFetchContext.h

 // Copyright 2016 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.
 
 #ifndef MockFetchContext_h
 #define MockFetchContext_h
 
 #include "core/fetch/FetchContext.h"
 #include "core/fetch/FetchRequest.h"
 #include "platform/network/ResourceTimingInfo.h"
@@ skipping 32 matching lines @@
       const ResourceRequest&,
       const KURL&,
       const ResourceLoaderOptions&,
       bool forPreload,
       FetchRequest::OriginRestriction) const override {
     return ResourceRequestBlockedReason::None;
   }
   bool shouldLoadNewResource(Resource::Type) const override {
     return m_loadPolicy == kShouldLoadNewResource;
   }
-  WebTaskRunner* loadingTaskRunner() const override { return m_runner.get(); }
+  RefPtr<WebTaskRunner> loadingTaskRunner() const override { return m_runner; }
 
   void setCachePolicy(CachePolicy policy) { m_policy = policy; }
   CachePolicy getCachePolicy() const override { return m_policy; }
   void setLoadComplete(bool complete) { m_complete = complete; }
   bool isLoadComplete() const override { return m_complete; }
 
   void addResourceTiming(
       const ResourceTimingInfo& resourceTimingInfo) override {
     m_transferSize = resourceTimingInfo.transferSize();
   }
   long long getTransferSize() const { return m_transferSize; }
 
  private:
   MockFetchContext(LoadPolicy loadPolicy)
       : m_loadPolicy(loadPolicy),
         m_policy(CachePolicyVerify),
-        m_runner(WTF::wrapUnique(new scheduler::FakeWebTaskRunner)),
+        m_runner(adoptRef(new scheduler::FakeWebTaskRunner)),
         m_complete(false),
         m_transferSize(-1) {}
 
   enum LoadPolicy m_loadPolicy;
   CachePolicy m_policy;
-  std::unique_ptr<scheduler::FakeWebTaskRunner> m_runner;
+  RefPtr<scheduler::FakeWebTaskRunner> m_runner;
   bool m_complete;
   long long m_transferSize;
 };
 
 }  // namespace blink
 
 #endif