Metrics for feature engagement tracker.

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): 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());
     DCHECK(event_count->has_count());
@@ skipping 56 matching lines @@
 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