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|
// Copyright (c) 2012 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/browser/extensions/event_router.h"
#include <utility>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/message_loop.h"
#include "base/stl_util.h"
#include "base/values.h"
#include "base/version.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/activity_log.h"
#include "chrome/browser/extensions/api/runtime/runtime_api.h"
#include "chrome/browser/extensions/api/web_request/web_request_api.h"
#include "chrome/browser/extensions/event_names.h"
#include "chrome/browser/extensions/extension_host.h"
#include "chrome/browser/extensions/extension_prefs.h"
#include "chrome/browser/extensions/extension_process_manager.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/extensions/lazy_background_task_queue.h"
#include "chrome/browser/extensions/process_map.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/api/extension_api.h"
#include "chrome/common/extensions/background_info.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/common/view_type.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/render_process_host.h"
using base::Value;
using content::BrowserThread;
namespace extensions {
namespace {
const char kDispatchEvent[] = "Event.dispatchEvent";
void NotifyEventListenerRemovedOnIOThread(
void* profile,
const std::string& extension_id,
const std::string& sub_event_name) {
ExtensionWebRequestEventRouter::GetInstance()->RemoveEventListener(
profile, extension_id, sub_event_name);
}
void DispatchOnInstalledEvent(
Profile* profile,
const std::string& extension_id,
const Version& old_version,
bool chrome_updated) {
if (!g_browser_process->profile_manager()->IsValidProfile(profile))
return;
RuntimeEventRouter::DispatchOnInstalledEvent(profile, extension_id,
old_version, chrome_updated);
}
void DoNothing(extensions::ExtensionHost* host) {}
} // namespace
struct EventRouter::ListenerProcess {
content::RenderProcessHost* process;
std::string extension_id;
ListenerProcess(content::RenderProcessHost* process,
const std::string& extension_id)
: process(process), extension_id(extension_id) {}
bool operator<(const ListenerProcess& that) const {
if (process < that.process)
return true;
if (process == that.process && extension_id < that.extension_id)
return true;
return false;
}
};
// static
void EventRouter::LogExtensionEventMessage(void* profile_id,
const std::string& extension_id,
const std::string& event_name,
scoped_ptr<ListValue> event_args) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
BrowserThread::PostTask(BrowserThread::UI,
FROM_HERE,
base::Bind(&LogExtensionEventMessage,
profile_id,
extension_id,
event_name,
base::Passed(&event_args)));
} else {
Profile* profile = reinterpret_cast<Profile*>(profile_id);
if (!g_browser_process->profile_manager()->IsValidProfile(profile))
return;
// An ExtensionService might not be running during unit tests, or an
// extension might have been unloaded by the time we get to logging it. In
// those cases log a warning.
ExtensionService* extension_service =
ExtensionSystem::Get(profile)->extension_service();
if (!extension_service) {
LOG(WARNING) << "ExtensionService does not seem to be available "
<< "(this may be normal for unit tests)";
} else {
const Extension* extension =
extension_service->extensions()->GetByID(extension_id);
if (!extension) {
LOG(WARNING) << "Extension " << extension_id << " not found!";
} else {
extensions::ActivityLog::GetInstance(profile)->LogEventAction(
extension, event_name, event_args.get(), "");
}
}
}
}
// static
void EventRouter::DispatchExtensionMessage(IPC::Sender* ipc_sender,
void* profile_id,
const std::string& extension_id,
const std::string& event_name,
ListValue* event_args,
const GURL& event_url,
UserGestureState user_gesture,
const EventFilteringInfo& info) {
if (ActivityLog::IsLogEnabled()) {
LogExtensionEventMessage(profile_id, extension_id, event_name,
scoped_ptr<ListValue>(event_args->DeepCopy()));
}
ListValue args;
args.Set(0, Value::CreateStringValue(event_name));
args.Set(1, event_args);
args.Set(2, info.AsValue().release());
ipc_sender->Send(new ExtensionMsg_MessageInvoke(MSG_ROUTING_CONTROL,
extension_id, kDispatchEvent, args, event_url,
user_gesture == USER_GESTURE_ENABLED));
// DispatchExtensionMessage does _not_ take ownership of event_args, so we
// must ensure that the destruction of args does not attempt to free it.
Value* removed_event_args = NULL;
args.Remove(1, &removed_event_args);
}
// static
void EventRouter::DispatchEvent(IPC::Sender* ipc_sender,
void* profile_id,
const std::string& extension_id,
const std::string& event_name,
scoped_ptr<ListValue> event_args,
const GURL& event_url,
UserGestureState user_gesture,
const EventFilteringInfo& info) {
DispatchExtensionMessage(ipc_sender, profile_id, extension_id, event_name,
event_args.get(), event_url, user_gesture, info);
}
EventRouter::EventRouter(Profile* profile, ExtensionPrefs* extension_prefs)
: profile_(profile),
listeners_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
activity_log_(ActivityLog::GetInstance(profile)),
dispatch_chrome_updated_event_(false) {
registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_TERMINATED,
content::NotificationService::AllSources());
registrar_.Add(this, content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
content::NotificationService::AllSources());
registrar_.Add(this, chrome::NOTIFICATION_EXTENSIONS_READY,
content::Source<Profile>(profile_));
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_ENABLED,
content::Source<Profile>(profile_));
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
content::Source<Profile>(profile_));
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(profile_));
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_INSTALLED,
content::Source<Profile>(profile_));
// NULL in unit_tests.
if (extension_prefs) {
// Check if registered events are up-to-date. We need to do this before
// reading the registered events, because it deletes them if they're out of
// date.
dispatch_chrome_updated_event_ =
!extension_prefs->CheckRegisteredEventsUpToDate();
}
}
EventRouter::~EventRouter() {}
void EventRouter::AddEventListener(const std::string& event_name,
content::RenderProcessHost* process,
const std::string& extension_id) {
listeners_.AddListener(scoped_ptr<EventListener>(new EventListener(
event_name, extension_id, process, scoped_ptr<DictionaryValue>())));
}
void EventRouter::RemoveEventListener(const std::string& event_name,
content::RenderProcessHost* process,
const std::string& extension_id) {
EventListener listener(event_name, extension_id, process,
scoped_ptr<DictionaryValue>());
listeners_.RemoveListener(&listener);
}
void EventRouter::RegisterObserver(Observer* observer,
const std::string& event_name) {
observers_[event_name] = observer;
}
void EventRouter::UnregisterObserver(Observer* observer) {
std::vector<ObserverMap::iterator> iters_to_remove;
for (ObserverMap::iterator iter = observers_.begin();
iter != observers_.end(); ++iter) {
if (iter->second == observer)
iters_to_remove.push_back(iter);
}
for (size_t i = 0; i < iters_to_remove.size(); ++i)
observers_.erase(iters_to_remove[i]);
}
void EventRouter::OnListenerAdded(const EventListener* listener) {
const std::string& event_name = listener->event_name;
const EventListenerInfo details(event_name, listener->extension_id);
ObserverMap::iterator observer = observers_.find(event_name);
if (observer != observers_.end())
observer->second->OnListenerAdded(details);
const Extension* extension = extensions::ExtensionSystem::Get(profile_)->
extension_service()->GetExtensionById(listener->extension_id,
ExtensionService::INCLUDE_ENABLED);
if (extension) {
scoped_ptr<ListValue> args(new ListValue());
if (listener->filter)
args->Append(listener->filter->DeepCopy());
activity_log_->LogAPIAction(extension,
event_name + ".addListener",
args.get(),
"");
}
}
void EventRouter::OnListenerRemoved(const EventListener* listener) {
const std::string& event_name = listener->event_name;
const EventListenerInfo details(event_name, listener->extension_id);
ObserverMap::iterator observer = observers_.find(event_name);
if (observer != observers_.end())
observer->second->OnListenerRemoved(details);
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&NotifyEventListenerRemovedOnIOThread,
profile_, listener->extension_id, event_name));
const Extension* extension = extensions::ExtensionSystem::Get(profile_)->
extension_service()->GetExtensionById(listener->extension_id,
ExtensionService::INCLUDE_ENABLED);
if (extension) {
scoped_ptr<ListValue> args(new ListValue());
activity_log_->LogAPIAction(extension,
event_name + ".removeListener",
args.get(),
"");
}
}
void EventRouter::AddLazyEventListener(const std::string& event_name,
const std::string& extension_id) {
scoped_ptr<EventListener> listener(new EventListener(
event_name, extension_id, NULL, scoped_ptr<DictionaryValue>()));
bool is_new = listeners_.AddListener(listener.Pass());
if (is_new) {
ExtensionPrefs* prefs = extensions::ExtensionSystem::Get(profile_)->
extension_service()->extension_prefs();
std::set<std::string> events = prefs->GetRegisteredEvents(extension_id);
bool prefs_is_new = events.insert(event_name).second;
if (prefs_is_new)
prefs->SetRegisteredEvents(extension_id, events);
}
}
void EventRouter::RemoveLazyEventListener(const std::string& event_name,
const std::string& extension_id) {
EventListener listener(event_name, extension_id, NULL,
scoped_ptr<DictionaryValue>());
bool did_exist = listeners_.RemoveListener(&listener);
if (did_exist) {
ExtensionPrefs* prefs = extensions::ExtensionSystem::Get(profile_)->
extension_service()->extension_prefs();
std::set<std::string> events = prefs->GetRegisteredEvents(extension_id);
bool prefs_did_exist = events.erase(event_name) > 0;
DCHECK(prefs_did_exist);
prefs->SetRegisteredEvents(extension_id, events);
}
}
void EventRouter::AddFilteredEventListener(const std::string& event_name,
content::RenderProcessHost* process,
const std::string& extension_id,
const base::DictionaryValue& filter,
bool add_lazy_listener) {
listeners_.AddListener(scoped_ptr<EventListener>(new EventListener(
event_name, extension_id, process,
scoped_ptr<DictionaryValue>(filter.DeepCopy()))));
if (add_lazy_listener) {
bool added = listeners_.AddListener(scoped_ptr<EventListener>(
new EventListener(event_name, extension_id, NULL,
scoped_ptr<DictionaryValue>(filter.DeepCopy()))));
if (added) {
ExtensionPrefs* prefs = extensions::ExtensionSystem::Get(profile_)->
extension_service()->extension_prefs();
prefs->AddFilterToEvent(event_name, extension_id, &filter);
}
}
}
void EventRouter::RemoveFilteredEventListener(
const std::string& event_name,
content::RenderProcessHost* process,
const std::string& extension_id,
const base::DictionaryValue& filter,
bool remove_lazy_listener) {
EventListener listener(event_name, extension_id, process,
scoped_ptr<DictionaryValue>(filter.DeepCopy()));
listeners_.RemoveListener(&listener);
if (remove_lazy_listener) {
listener.process = NULL;
bool removed = listeners_.RemoveListener(&listener);
if (removed) {
ExtensionPrefs* prefs = extensions::ExtensionSystem::Get(profile_)->
extension_service()->extension_prefs();
prefs->RemoveFilterFromEvent(event_name, extension_id, &filter);
}
}
}
bool EventRouter::HasEventListener(const std::string& event_name) {
return listeners_.HasListenerForEvent(event_name);
}
bool EventRouter::ExtensionHasEventListener(const std::string& extension_id,
const std::string& event_name) {
return listeners_.HasListenerForExtension(extension_id, event_name);
}
bool EventRouter::HasEventListenerImpl(const ListenerMap& listener_map,
const std::string& extension_id,
const std::string& event_name) {
ListenerMap::const_iterator it = listener_map.find(event_name);
if (it == listener_map.end())
return false;
const std::set<ListenerProcess>& listeners = it->second;
if (extension_id.empty())
return !listeners.empty();
for (std::set<ListenerProcess>::const_iterator listener = listeners.begin();
listener != listeners.end(); ++listener) {
if (listener->extension_id == extension_id)
return true;
}
return false;
}
void EventRouter::BroadcastEvent(scoped_ptr<Event> event) {
DispatchEventImpl("", linked_ptr<Event>(event.release()));
}
void EventRouter::DispatchEventToExtension(const std::string& extension_id,
scoped_ptr<Event> event) {
DCHECK(!extension_id.empty());
DispatchEventImpl(extension_id, linked_ptr<Event>(event.release()));
}
void EventRouter::DispatchEventImpl(const std::string& restrict_to_extension_id,
const linked_ptr<Event>& event) {
// We don't expect to get events from a completely different profile.
DCHECK(!event->restrict_to_profile ||
profile_->IsSameProfile(event->restrict_to_profile));
std::set<const EventListener*> listeners(
listeners_.GetEventListeners(*event));
std::set<EventDispatchIdentifier> already_dispatched;
// We dispatch events for lazy background pages first because attempting to do
// so will cause those that are being suspended to cancel that suspension.
// As canceling a suspension entails sending an event to the affected
// background page, and as that event needs to be delivered before we dispatch
// the event we are dispatching here, we dispatch to the lazy listeners here
// first.
for (std::set<const EventListener*>::iterator it = listeners.begin();
it != listeners.end(); it++) {
const EventListener* listener = *it;
if (restrict_to_extension_id.empty() ||
restrict_to_extension_id == listener->extension_id) {
if (!listener->process) {
DispatchLazyEvent(listener->extension_id, event, &already_dispatched);
}
}
}
for (std::set<const EventListener*>::iterator it = listeners.begin();
it != listeners.end(); it++) {
const EventListener* listener = *it;
if (restrict_to_extension_id.empty() ||
restrict_to_extension_id == listener->extension_id) {
if (listener->process) {
EventDispatchIdentifier dispatch_id(
listener->process->GetBrowserContext(), listener->extension_id);
if (!ContainsKey(already_dispatched, dispatch_id)) {
DispatchEventToProcess(listener->extension_id, listener->process,
event);
}
}
}
}
}
void EventRouter::DispatchLazyEvent(
const std::string& extension_id,
const linked_ptr<Event>& event,
std::set<EventDispatchIdentifier>* already_dispatched) {
ExtensionService* service =
extensions::ExtensionSystem::Get(profile_)->extension_service();
// Check both the original and the incognito profile to see if we
// should load a lazy bg page to handle the event. The latter case
// occurs in the case of split-mode extensions.
const Extension* extension = service->extensions()->GetByID(extension_id);
if (extension) {
if (MaybeLoadLazyBackgroundPageToDispatchEvent(
profile_, extension, event)) {
already_dispatched->insert(std::make_pair(profile_, extension_id));
}
if (profile_->HasOffTheRecordProfile() &&
extension->incognito_split_mode()) {
if (MaybeLoadLazyBackgroundPageToDispatchEvent(
profile_->GetOffTheRecordProfile(), extension, event)) {
already_dispatched->insert(
std::make_pair(profile_->GetOffTheRecordProfile(), extension_id));
}
}
}
}
void EventRouter::DispatchEventToProcess(const std::string& extension_id,
content::RenderProcessHost* process,
const linked_ptr<Event>& event) {
ExtensionService* service =
extensions::ExtensionSystem::Get(profile_)->extension_service();
const Extension* extension = service->extensions()->GetByID(extension_id);
// The extension could have been removed, but we do not unregister it until
// the extension process is unloaded.
if (!extension)
return;
Profile* listener_profile = Profile::FromBrowserContext(
process->GetBrowserContext());
ProcessMap* process_map = extensions::ExtensionSystem::Get(listener_profile)->
extension_service()->process_map();
// If the event is privileged, only send to extension processes. Otherwise,
// it's OK to send to normal renderers (e.g., for content scripts).
if (ExtensionAPI::GetSharedInstance()->IsPrivileged(event->event_name) &&
!process_map->Contains(extension->id(), process->GetID())) {
return;
}
if (!CanDispatchEventToProfile(listener_profile, extension, event))
return;
if (!event->will_dispatch_callback.is_null()) {
event->will_dispatch_callback.Run(listener_profile, extension,
event->event_args.get());
}
DispatchExtensionMessage(process, listener_profile, extension_id,
event->event_name, event->event_args.get(),
event->event_url, event->user_gesture,
event->filter_info);
IncrementInFlightEvents(listener_profile, extension);
}
bool EventRouter::CanDispatchEventToProfile(Profile* profile,
const Extension* extension,
const linked_ptr<Event>& event) {
// Is this event from a different profile than the renderer (ie, an
// incognito tab event sent to a normal process, or vice versa).
bool cross_incognito =
event->restrict_to_profile && profile != event->restrict_to_profile;
if (cross_incognito &&
!extensions::ExtensionSystem::Get(profile)->extension_service()->
CanCrossIncognito(extension)) {
return false;
}
return true;
}
bool EventRouter::MaybeLoadLazyBackgroundPageToDispatchEvent(
Profile* profile,
const Extension* extension,
const linked_ptr<Event>& event) {
if (!CanDispatchEventToProfile(profile, extension, event))
return false;
LazyBackgroundTaskQueue* queue =
ExtensionSystem::Get(profile)->lazy_background_task_queue();
if (queue->ShouldEnqueueTask(profile, extension)) {
linked_ptr<Event> dispatched_event(event);
// If there's a dispatch callback, call it now (rather than dispatch time)
// to avoid lifetime issues. Use a separate copy of the event args, so they
// last until the event is dispatched.
if (!event->will_dispatch_callback.is_null()) {
dispatched_event.reset(event->DeepCopy());
dispatched_event->will_dispatch_callback.Run(
profile, extension, dispatched_event->event_args.get());
// Ensure we don't call it again at dispatch time.
dispatched_event->will_dispatch_callback.Reset();
}
queue->AddPendingTask(profile, extension->id(),
base::Bind(&EventRouter::DispatchPendingEvent,
base::Unretained(this), dispatched_event));
return true;
}
return false;
}
void EventRouter::IncrementInFlightEvents(Profile* profile,
const Extension* extension) {
// Only increment in-flight events if the lazy background page is active,
// because that's the only time we'll get an ACK.
if (BackgroundInfo::HasLazyBackgroundPage(extension)) {
ExtensionProcessManager* pm =
ExtensionSystem::Get(profile)->process_manager();
ExtensionHost* host = pm->GetBackgroundHostForExtension(extension->id());
if (host)
pm->IncrementLazyKeepaliveCount(extension);
}
}
void EventRouter::OnEventAck(Profile* profile,
const std::string& extension_id) {
ExtensionProcessManager* pm =
ExtensionSystem::Get(profile)->process_manager();
ExtensionHost* host = pm->GetBackgroundHostForExtension(extension_id);
// The event ACK is routed to the background host, so this should never be
// NULL.
CHECK(host);
// TODO(mpcomplete): We should never get this message unless
// HasLazyBackgroundPage is true. Find out why we're getting it anyway.
if (host->extension() &&
BackgroundInfo::HasLazyBackgroundPage(host->extension()))
pm->DecrementLazyKeepaliveCount(host->extension());
}
void EventRouter::DispatchPendingEvent(const linked_ptr<Event>& event,
ExtensionHost* host) {
if (!host)
return;
if (listeners_.HasProcessListener(host->render_process_host(),
host->extension()->id())) {
DispatchEventToProcess(host->extension()->id(),
host->render_process_host(), event);
}
}
void EventRouter::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_RENDERER_PROCESS_TERMINATED:
case content::NOTIFICATION_RENDERER_PROCESS_CLOSED: {
content::RenderProcessHost* renderer =
content::Source<content::RenderProcessHost>(source).ptr();
// Remove all event listeners associated with this renderer.
listeners_.RemoveListenersForProcess(renderer);
break;
}
case chrome::NOTIFICATION_EXTENSIONS_READY: {
// We're done restarting Chrome after an update.
dispatch_chrome_updated_event_ = false;
break;
}
case chrome::NOTIFICATION_EXTENSION_ENABLED: {
// If the extension has a lazy background page, make sure it gets loaded
// to register the events the extension is interested in.
const Extension* extension =
content::Details<const Extension>(details).ptr();
if (BackgroundInfo::HasLazyBackgroundPage(extension)) {
LazyBackgroundTaskQueue* queue =
ExtensionSystem::Get(profile_)->lazy_background_task_queue();
queue->AddPendingTask(profile_, extension->id(),
base::Bind(&DoNothing));
}
}
case chrome::NOTIFICATION_EXTENSION_LOADED: {
// Add all registered lazy listeners to our cache.
const Extension* extension =
content::Details<const Extension>(details).ptr();
ExtensionPrefs* prefs = extensions::ExtensionSystem::Get(profile_)->
extension_service()->extension_prefs();
std::set<std::string> registered_events =
prefs->GetRegisteredEvents(extension->id());
listeners_.LoadUnfilteredLazyListeners(extension->id(),
registered_events);
const DictionaryValue* filtered_events =
prefs->GetFilteredEvents(extension->id());
if (filtered_events)
listeners_.LoadFilteredLazyListeners(extension->id(), *filtered_events);
if (dispatch_chrome_updated_event_) {
MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&DispatchOnInstalledEvent, profile_, extension->id(),
Version(), true));
}
break;
}
case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
// Remove all registered lazy listeners from our cache.
UnloadedExtensionInfo* unloaded =
content::Details<UnloadedExtensionInfo>(details).ptr();
listeners_.RemoveLazyListenersForExtension(unloaded->extension->id());
break;
}
case chrome::NOTIFICATION_EXTENSION_INSTALLED: {
// Dispatch the onInstalled event.
const Extension* extension =
content::Details<const Extension>(details).ptr();
// Get the previous version, if this is an upgrade.
ExtensionService* service =
ExtensionSystem::Get(profile_)->extension_service();
const Extension* old = service->GetExtensionById(extension->id(), true);
Version old_version;
if (old)
old_version = *old->version();
MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&DispatchOnInstalledEvent, profile_, extension->id(),
old_version, false));
break;
}
default:
NOTREACHED();
return;
}
}
Event::Event(const std::string& event_name,
scoped_ptr<base::ListValue> event_args)
: event_name(event_name),
event_args(event_args.Pass()),
restrict_to_profile(NULL),
user_gesture(EventRouter::USER_GESTURE_UNKNOWN) {
DCHECK(this->event_args.get());
}
Event::Event(const std::string& event_name,
scoped_ptr<base::ListValue> event_args,
Profile* restrict_to_profile)
: event_name(event_name),
event_args(event_args.Pass()),
restrict_to_profile(restrict_to_profile),
user_gesture(EventRouter::USER_GESTURE_UNKNOWN) {
DCHECK(this->event_args.get());
}
Event::Event(const std::string& event_name,
scoped_ptr<ListValue> event_args,
Profile* restrict_to_profile,
const GURL& event_url,
EventRouter::UserGestureState user_gesture,
const EventFilteringInfo& filter_info)
: event_name(event_name),
event_args(event_args.Pass()),
restrict_to_profile(restrict_to_profile),
event_url(event_url),
user_gesture(user_gesture),
filter_info(filter_info) {
DCHECK(this->event_args.get());
}
Event::~Event() {}
Event* Event::DeepCopy() {
Event* copy = new Event(event_name,
scoped_ptr<base::ListValue>(event_args->DeepCopy()),
restrict_to_profile,
event_url,
user_gesture,
filter_info);
copy->will_dispatch_callback = will_dispatch_callback;
return copy;
}
EventListenerInfo::EventListenerInfo(const std::string& event_name,
const std::string& extension_id)
: event_name(event_name),
extension_id(extension_id) {}
} // namespace extensions
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