Domain Reliability: Add rudimentary WebUI page.

components/domain_reliability/monitor.h

 // Copyright 2014 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 COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_
 #define COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "components/domain_reliability/beacon.h"
 #include "components/domain_reliability/clear_mode.h"
 #include "components/domain_reliability/config.h"
 #include "components/domain_reliability/context.h"
 #include "components/domain_reliability/dispatcher.h"
 #include "components/domain_reliability/domain_reliability_export.h"
 #include "components/domain_reliability/scheduler.h"
 #include "components/domain_reliability/uploader.h"
 #include "components/domain_reliability/util.h"
 #include "net/base/load_timing_info.h"
 #include "net/http/http_response_info.h"
 #include "net/url_request/url_request_status.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 class ThreadChecker;
+class Value;
 }  // namespace base
 
 namespace net {
 class URLRequest;
 class URLRequestContext;
 class URLRequestContextGetter;
 }  // namespace net
 
 namespace domain_reliability {
 
@@ skipping 25 matching lines @@
   // Should be called when |request| is complete. Will examine and possibly
   // log the (final) request. (|started| should be true if the request was
   // actually started before it was terminated.)
   void OnCompleted(net::URLRequest* request, bool started);
 
   // Called to remove browsing data. With CLEAR_BEACONS, leaves contexts in
   // place but clears beacons (which betray browsing history); with
   // CLEAR_CONTEXTS, removes all contexts (which can behave as cookies).
   void ClearBrowsingData(DomainReliabilityClearMode mode);
 
+  // Gets a Value containing data that can be formatted into a web page for
+  // debugging purposes.
+  scoped_ptr<const base::Value> GetWebUIData() const;
+
   DomainReliabilityContext* AddContextForTesting(
       scoped_ptr<const DomainReliabilityConfig> config);
 
   size_t contexts_size_for_testing() const { return contexts_.size(); }
 
  private:
   friend class DomainReliabilityMonitorTest;
   // Allow the Service to call |MakeWeakPtr|.
   friend class DomainReliabilityServiceImpl;
 
@@ skipping 33 matching lines @@
   ContextMap contexts_;
 
   base::WeakPtrFactory<DomainReliabilityMonitor> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DomainReliabilityMonitor);
 };
 
 }  // namespace domain_reliability
 
 #endif  // COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_