Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/lazy_background_task_queue.cc

Index: extensions/browser/lazy_background_task_queue.cc
diff --git a/extensions/browser/lazy_background_task_queue.cc b/extensions/browser/lazy_background_task_queue.cc
index 5ac92de54bf2c805573d6e17b03850d7049d8583..69a9bf533e5060afee69bc2b525b6971e85ffd05 100644
--- a/extensions/browser/lazy_background_task_queue.cc
+++ b/extensions/browser/lazy_background_task_queue.cc
@@ -66,10 +66,10 @@ void LazyBackgroundTaskQueue::AddPendingTask(
     const std::string& extension_id,
     const PendingTask& task) {
   if (ExtensionsBrowserClient::Get()->IsShuttingDown()) {
-    task.Run(NULL);
+    task.Run(nullptr);
     return;
   }
-  PendingTasksList* tasks_list = NULL;
+  PendingTasksList* tasks_list = nullptr;
   PendingTasksKey key(browser_context, extension_id);
   PendingTasksMap::iterator it = pending_tasks_.find(key);
   if (it == pending_tasks_.end()) {
@@ -89,7 +89,7 @@ void LazyBackgroundTaskQueue::AddPendingTask(
       // but the extension isn't enabled in incognito mode.
       if (!pm->CreateBackgroundHost(
             extension, BackgroundInfo::GetBackgroundURL(extension))) {
-        task.Run(NULL);
+        task.Run(nullptr);
         return;
       }
     }
@@ -161,7 +161,7 @@ void LazyBackgroundTaskQueue::Observe(
       ExtensionHost* host =
            content::Details<ExtensionHost>(details).ptr();
       if (host->extension_host_type() == VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
-        ProcessPendingTasks(NULL, browser_context, host->extension());
+        ProcessPendingTasks(nullptr, browser_context, host->extension());
       }
       break;
     }
@@ -176,12 +176,12 @@ void LazyBackgroundTaskQueue::OnExtensionUnloaded(
     const Extension* extension,
     UnloadedExtensionInfo::Reason reason) {
   // Notify consumers that the page failed to load.
-  ProcessPendingTasks(NULL, browser_context, extension);
+  ProcessPendingTasks(nullptr, browser_context, extension);
   // If this extension is also running in an off-the-record context, notify that
   // task queue as well.
   ExtensionsBrowserClient* browser_client = ExtensionsBrowserClient::Get();
   if (browser_client->HasOffTheRecordContext(browser_context)) {
-    ProcessPendingTasks(NULL,
+    ProcessPendingTasks(nullptr,
                         browser_client->GetOffTheRecordContext(browser_context),
                         extension);
   }