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

net/proxy/mojo_proxy_resolver_impl.cc

Index: net/proxy/mojo_proxy_resolver_impl.cc
diff --git a/net/proxy/mojo_proxy_resolver_impl.cc b/net/proxy/mojo_proxy_resolver_impl.cc
index bbac2e72ccaa8dadedb54df1f3d33461d428c718..46b91a4ba876ac803d9e87a5a59c862f95657588 100644
--- a/net/proxy/mojo_proxy_resolver_impl.cc
+++ b/net/proxy/mojo_proxy_resolver_impl.cc
@@ -40,7 +40,7 @@ class MojoProxyResolverImpl::Job {
   interfaces::ProxyResolverRequestClientPtr client_;
   ProxyInfo result_;
   GURL url_;
-  net::ProxyResolver::RequestHandle request_handle_;
+  scoped_ptr<net::ProxyResolver::Request> request_;
   bool done_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
@@ -77,18 +77,14 @@ MojoProxyResolverImpl::Job::Job(
     : resolver_(resolver),
       client_(std::move(client)),
       url_(url),
-      request_handle_(nullptr),
       done_(false) {}
 
-MojoProxyResolverImpl::Job::~Job() {
-  if (request_handle_ && !done_)
-    resolver_->resolver_->CancelRequest(request_handle_);
-}
+MojoProxyResolverImpl::Job::~Job() {}
 
 void MojoProxyResolverImpl::Job::Start() {
   resolver_->resolver_->GetProxyForURL(
       url_, &result_, base::Bind(&Job::GetProxyDone, base::Unretained(this)),
-      &request_handle_,
+      &request_,
       make_scoped_ptr(new MojoProxyResolverV8TracingBindings<
                       interfaces::ProxyResolverRequestClient>(client_.get())));
   client_.set_connection_error_handler(base::Bind(