Revert of Change ProxyResolver::GetProxyForURL() to take a scoped_ptr<Request>* rather than a RequestHandle*

net/proxy/proxy_resolver_v8_tracing_wrapper.cc

Index: net/proxy/proxy_resolver_v8_tracing_wrapper.cc
diff --git a/net/proxy/proxy_resolver_v8_tracing_wrapper.cc b/net/proxy/proxy_resolver_v8_tracing_wrapper.cc
index 767087c75173990984bdc56c26cff01248a5361d..25144b6181317a0d2d4ccef805b5bcb051b5172d 100644
--- a/net/proxy/proxy_resolver_v8_tracing_wrapper.cc
+++ b/net/proxy/proxy_resolver_v8_tracing_wrapper.cc
@@ -88,8 +88,12 @@
   int GetProxyForURL(const GURL& url,
                      ProxyInfo* results,
                      const CompletionCallback& callback,
-                     scoped_ptr<Request>* request,
+                     RequestHandle* request,
                      const BoundNetLog& net_log) override;
+
+  void CancelRequest(RequestHandle request) override;
+
+  LoadState GetLoadState(RequestHandle request) const override;
 
  private:
   scoped_ptr<ProxyResolverV8Tracing> resolver_impl_;
@@ -114,13 +118,22 @@
     const GURL& url,
     ProxyInfo* results,
     const CompletionCallback& callback,
-    scoped_ptr<Request>* request,
+    RequestHandle* request,
     const BoundNetLog& net_log) {
   resolver_impl_->GetProxyForURL(
       url, results, callback, request,
       make_scoped_ptr(new BindingsImpl(error_observer_.get(), host_resolver_,
                                        net_log_, net_log)));
   return ERR_IO_PENDING;
+}
+
+void ProxyResolverV8TracingWrapper::CancelRequest(RequestHandle request) {
+  resolver_impl_->CancelRequest(request);
+}
+
+LoadState ProxyResolverV8TracingWrapper::GetLoadState(
+    RequestHandle request) const {
+  return resolver_impl_->GetLoadState(request);
 }
 
 }  // namespace