Support IPH NotifyEvent calls before Initialize

components/feature_engagement_tracker/internal/model_impl.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 "components/feature_engagement_tracker/internal/model_impl.h"
 
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 32 matching lines @@
 const Event* ModelImpl::GetEvent(const std::string& event_name) const {
   auto search = events_.find(event_name);
   if (search == events_.end())
     return nullptr;
 
   return &search->second;
 }
 
 void ModelImpl::IncrementEvent(const std::string& event_name,
                                uint32_t current_day) {
-  // TODO(nyquist): Add support for pending events.
   // TODO(nyquist): Track this event in UMA.
   DCHECK(ready_);
 
   if (!storage_validator_->ShouldStore(event_name))
     return;
 
   Event& event = GetNonConstEvent(event_name);
   for (int i = 0; i < event.events_size(); ++i) {
     Event_Count* event_count = event.mutable_events(i);
     DCHECK(event_count->has_day());
@@ skipping 10 matching lines @@
   event_count->set_day(current_day);
   event_count->set_count(1u);
   store_->WriteEvent(event);
 }
 
 void ModelImpl::OnStoreLoaded(const OnModelInitializationFinished& callback,
                               uint32_t current_day,
                               bool success,
                               std::unique_ptr<std::vector<Event>> events) {
   if (!success) {
-    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                  base::Bind(callback, false));
+    callback.Run(false);
     return;
   }
 
   for (auto& event : *events) {
     DCHECK_NE("", event.name());
 
     Event new_event;
     for (const auto& event_count : event.events()) {
       if (!storage_validator_->ShouldKeep(event.name(), event_count.day(),
                                           current_day)) {
@@ skipping 13 matching lines @@
       // If the number of events is not the same, overwrite DB entry.
       if (new_event.events_size() != event.events_size())
         store_->WriteEvent(new_event);
     } else {
       // If there are no more activity for an Event, delete the whole event.
       store_->DeleteEvent(event.name());
     }
   }
 
   ready_ = true;
-
-  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                base::Bind(callback, true));
+  callback.Run(true);
 }
 
 Event& ModelImpl::GetNonConstEvent(const std::string& event_name) {
   if (events_.find(event_name) == events_.end()) {
     // Event does not exist yet, so create it.
     events_[event_name].set_name(event_name);
     store_->WriteEvent(events_[event_name]);
   }
   return events_[event_name];
 }
 
 }  // namespace feature_engagement_tracker