Support auto-reload on errors.

chrome/renderer/net/net_error_helper.cc

 // Copyright (c) 2013 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 "chrome/renderer/net/net_error_helper.h"
 
 #include <string>
 
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
@@ skipping 194 matching lines @@
   // The fetcher may only be deleted after |data| is passed to |core_|.  Move
   // it to a temporary to prevent any potential re-entrancy issues.
   scoped_ptr<content::ResourceFetcher> fetcher(
       alt_error_page_fetcher_.release());
   if (!response.isNull() && response.httpStatusCode() == 200) {
     core_.OnAlternateErrorPageFetched(data);
   } else {
     core_.OnAlternateErrorPageFetched("");
   }
 }
+
+// MockableOneShotTimer implementation in terms of base::OneShotTimer

[Randy Smith (Not in Mondays), 2014/01/30 20:14:47]

This feels like it should be in its own file, not in net_error_helper.cc, just
so that other classes can use it if they want.  

[Elly Fong-Jones, 2014/02/05 21:12:37]

Done.

+
+template<class Receiver>
+class MockableOneShotTimerImpl
+    : public NetErrorHelperCore::MockableOneShotTimer {
+ public:
+  MockableOneShotTimerImpl();
+  virtual ~MockableOneShotTimerImpl();
+  virtual void Start(const tracked_objects::Location& posted_from,
+                     base::TimeDelta delay, const base::Closure& user_task);
+  virtual void Stop();
+  virtual bool IsRunning() const;
+ private:
+  base::OneShotTimer<Receiver> timer_;
+};
+
+template<class Receiver>
+MockableOneShotTimerImpl<Receiver>::MockableOneShotTimerImpl() {}
+template<class Receiver>
+MockableOneShotTimerImpl<Receiver>::~MockableOneShotTimerImpl() {}
+template<class Receiver>
+void MockableOneShotTimerImpl<Receiver>::Start(
+    const tracked_objects::Location& posted_from, base::TimeDelta delay,
+    const base::Closure& user_task) {
+  timer_.Start(posted_from, delay, user_task);
+}
+
+template<class Receiver>
+void MockableOneShotTimerImpl<Receiver>::Stop() {
+  timer_.Stop();
+}
+
+template<class Receiver>
+bool MockableOneShotTimerImpl<Receiver>::IsRunning() const {
+  return timer_.IsRunning();
+}
+
+NetErrorHelperCore::MockableOneShotTimer* NetErrorHelper::NewMockableOneShotTimer() {

[Randy Smith (Not in Mondays), 2014/01/30 20:14:47]

nit: Line too long?

[Elly Fong-Jones, 2014/02/05 21:12:37]

Done.

+  return new MockableOneShotTimerImpl<NetErrorHelperCore>();
+}
+
+void NetErrorHelper::FetchAutoReloadPage(const GURL& url) {
+  render_frame()->GetWebFrame()->loadRequest(blink::WebURLRequest(url));
+}
+
+void NetErrorHelper::CancelFetchAutoReloadPage() {
+  // TODO(ellyjones): is this necessary? We can only get here via OnStop(),
+  // which already implies stopLoading().
+  // render_frame()->GetWebFrame()->stopLoading();
+}