Reporting: Implement serializer.

net/reporting/reporting_garbage_collector.cc

 // Copyright 2017 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 "net/reporting/reporting_garbage_collector.h"
 
 #include <vector>
 
 #include "base/memory/ptr_util.h"
 #include "base/time/tick_clock.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "net/reporting/reporting_cache.h"
 #include "net/reporting/reporting_context.h"
 #include "net/reporting/reporting_observer.h"
 #include "net/reporting/reporting_policy.h"
 #include "net/reporting/reporting_report.h"
 
 namespace net {
 
 namespace {
 
 class ReportingGarbageCollectorImpl : public ReportingGarbageCollector,
                                       public ReportingObserver {
  public:
   ReportingGarbageCollectorImpl(ReportingContext* context)
-      : context_(context), timer_(base::MakeUnique<base::OneShotTimer>()) {
-    context_->AddObserver(this);
+      : context_(context), timer_(base::MakeUnique<base::OneShotTimer>()) {}
+
+  // ReportingGarbageCollector implementation:
+
+  ~ReportingGarbageCollectorImpl() override {
+    DCHECK(context_->initialized());
+    context_->RemoveObserver(this);
   }
 
-  // ReportingGarbageCollector implementation:
-  //
-  ~ReportingGarbageCollectorImpl() override { context_->RemoveObserver(this); }
+  void Initialize() override {
+    context_->AddObserver(this);
+    CollectGarbage();
+  }
 
   void SetTimerForTesting(std::unique_ptr<base::Timer> timer) override {
-    DCHECK(!timer_->IsRunning());
+    DCHECK(!context_->initialized());
     timer_ = std::move(timer);
   }
 
   // ReportingObserver implementation:
   void OnCacheUpdated() override {
+    DCHECK(context_->initialized());
     if (!timer_->IsRunning())
       StartTimer();
   }
 
  private:
   void StartTimer() {
     timer_->Start(FROM_HERE, context_->policy().garbage_collection_interval,
                   base::Bind(&ReportingGarbageCollectorImpl::CollectGarbage,
                              base::Unretained(this)));
   }
@@ skipping 27 matching lines @@
 
 // static
 std::unique_ptr<ReportingGarbageCollector> ReportingGarbageCollector::Create(
     ReportingContext* context) {
   return base::MakeUnique<ReportingGarbageCollectorImpl>(context);
 }
 
 ReportingGarbageCollector::~ReportingGarbageCollector() {}
 
 }  // namespace net