Add chrome.runtime.onStartup, which is fired on browser start.

chrome/browser/extensions/lazy_background_task_queue.cc

Index: chrome/browser/extensions/lazy_background_task_queue.cc
diff --git a/chrome/browser/extensions/lazy_background_task_queue.cc b/chrome/browser/extensions/lazy_background_task_queue.cc
index 1d0b01c02b21b556b200c6239d6bed719c2c49c1..051cab7f0cdd0a8c6179e107a2cdff730dcf87eb 100644
--- a/chrome/browser/extensions/lazy_background_task_queue.cc
+++ b/chrome/browser/extensions/lazy_background_task_queue.cc
@@ -42,7 +42,7 @@ LazyBackgroundTaskQueue::~LazyBackgroundTaskQueue() {
 bool LazyBackgroundTaskQueue::ShouldEnqueueTask(
     Profile* profile, const Extension* extension) {
   DCHECK(extension);
-  if (extension->has_lazy_background_page()) {
+  if (extension->has_background_page()) {
     ExtensionProcessManager* pm = profile->GetExtensionProcessManager();
     ExtensionHost* background_host =
         pm->GetBackgroundHostForExtension(extension->id());
@@ -59,6 +59,7 @@ void LazyBackgroundTaskQueue::AddPendingTask(
     Profile* profile,
     const std::string& extension_id,
     const PendingTask& task) {
+  LOG(ERROR) << "AddPendingTask: " << extension_id;
   PendingTasksList* tasks_list = NULL;
   PendingTasksKey key(profile, extension_id);
   PendingTasksMap::iterator it = pending_tasks_.find(key);
@@ -66,16 +67,18 @@ void LazyBackgroundTaskQueue::AddPendingTask(
     tasks_list = new PendingTasksList();
     pending_tasks_[key] = linked_ptr<PendingTasksList>(tasks_list);
 
-    // If this is the first enqueued task, ensure the background page
-    // is loaded.
     const Extension* extension =
         ExtensionSystem::Get(profile)->extension_service()->
             extensions()->GetByID(extension_id);
-    DCHECK(extension->has_lazy_background_page());
-    ExtensionProcessManager* pm =
-        ExtensionSystem::Get(profile)->process_manager();
-    pm->IncrementLazyKeepaliveCount(extension);
-    pm->CreateBackgroundHost(extension, extension->GetBackgroundURL());
+    if (extension && extension->has_lazy_background_page()) {
+      // If this is the first enqueued task, and we're not waiting for the
+      // background page to unload, ensure the background page is loaded.
+      LOG(ERROR) << "AddPendingTask NEWHOST: " << extension_id;
+      ExtensionProcessManager* pm =
+          ExtensionSystem::Get(profile)->process_manager();
+      pm->IncrementLazyKeepaliveCount(extension);
+      pm->CreateBackgroundHost(extension, extension->GetBackgroundURL());
+    }
   } else {
     tasks_list = it->second.get();
   }
@@ -87,17 +90,18 @@ void LazyBackgroundTaskQueue::ProcessPendingTasks(
     ExtensionHost* host,
     Profile* profile,
     const Extension* extension) {
-  if (!profile->IsSameProfile(profile_) ||
-      !extension->has_lazy_background_page())
+  if (!profile->IsSameProfile(profile_))
     return;
 
   PendingTasksKey key(profile, extension->id());
   PendingTasksMap::iterator map_it = pending_tasks_.find(key);
   if (map_it == pending_tasks_.end()) {
-    CHECK(!host);  // lazy page should not load without any pending tasks
+    if (extension->has_lazy_background_page())
+      CHECK(!host);  // lazy page should not load without any pending tasks
     return;
   }
 
+  LOG(ERROR) << "ProcessPendingTasks: " << extension->id() << " " << host;
   // Swap the pending tasks to a temporary, to avoid problems if the task
   // list is modified during processing.
   PendingTasksList tasks;
@@ -111,7 +115,7 @@ void LazyBackgroundTaskQueue::ProcessPendingTasks(
 
   // Balance the keepalive in AddPendingTask. Note we don't do this on a
   // failure to load, because the keepalive count is reset in that case.
-  if (host) {
+  if (host && extension->has_lazy_background_page()) {
     ExtensionSystem::Get(profile)->process_manager()->
         DecrementLazyKeepaliveCount(extension);
   }
@@ -127,6 +131,7 @@ void LazyBackgroundTaskQueue::Observe(
       // events for it.
       ExtensionHost* host =
           content::Details<ExtensionHost>(details).ptr();
+      LOG(ERROR) << "Host done loading: " << host->extension()->id();
       if (host->extension_host_type() ==
               chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
         CHECK(host->did_stop_loading());
@@ -142,6 +147,7 @@ void LazyBackgroundTaskQueue::Observe(
       Profile* profile = content::Source<Profile>(source).ptr();
       ExtensionHost* host =
            content::Details<ExtensionHost>(details).ptr();
+      LOG(ERROR) << "Host destroyed: " << host->extension()->id();
       if (host->extension_host_type() ==
               chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
         ProcessPendingTasks(NULL, profile, host->extension());