Revert of Use TaskRunnerTimer in PingLoader

third_party/WebKit/Source/core/loader/PingLoader.cpp

Index: third_party/WebKit/Source/core/loader/PingLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/PingLoader.cpp b/third_party/WebKit/Source/core/loader/PingLoader.cpp
index f7b637a8133635c88ca5862e67a4735a977a1518..bef3da748378139c565f42258f31949b48c8d4f3 100644
--- a/third_party/WebKit/Source/core/loader/PingLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/PingLoader.cpp
@@ -35,7 +35,6 @@
 #include "core/dom/DOMArrayBufferView.h"
 #include "core/dom/Document.h"
 #include "core/dom/SecurityContext.h"
-#include "core/dom/TaskRunnerHelper.h"
 #include "core/fetch/CrossOriginAccessControl.h"
 #include "core/fetch/FetchContext.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
@@ -54,7 +53,6 @@
 #include "core/loader/FrameLoaderClient.h"
 #include "core/loader/MixedContentChecker.h"
 #include "core/page/Page.h"
-#include "platform/Timer.h"
 #include "platform/WebFrameScheduler.h"
 #include "platform/exported/WrappedResourceRequest.h"
 #include "platform/exported/WrappedResourceResponse.h"
@@ -220,7 +218,7 @@ class PingLoaderImpl : public GarbageCollectedFinalized<PingLoaderImpl>,
   void didFailLoading(LocalFrame*);
 
   std::unique_ptr<WebURLLoader> m_loader;
-  TaskRunnerTimer<PingLoaderImpl> m_timeout;
+  Timer<PingLoaderImpl> m_timeout;
   String m_url;
   unsigned long m_identifier;
   SelfKeepAlive<PingLoaderImpl> m_keepAlive;
@@ -238,9 +236,7 @@ PingLoaderImpl::PingLoaderImpl(LocalFrame* frame,
                                StoredCredentials credentialsAllowed,
                                bool isBeacon)
     : ContextClient(frame),
-      m_timeout(TaskRunnerHelper::get(TaskType::Networking, frame),
-                this,
-                &PingLoaderImpl::timeout),
+      m_timeout(this, &PingLoaderImpl::timeout),
       m_url(request.url()),
       m_identifier(createUniqueIdentifier()),
       m_keepAlive(this),