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

extensions/browser/api/web_view/web_view_internal_api.cc

Index: extensions/browser/api/web_view/web_view_internal_api.cc
diff --git a/extensions/browser/api/web_view/web_view_internal_api.cc b/extensions/browser/api/web_view/web_view_internal_api.cc
index cbacf7e59d82c1ac7b827e5dd61c0d065416c5de..5a7b6fad60c7156d93ebe789e87ddb60566e302c 100644
--- a/extensions/browser/api/web_view/web_view_internal_api.cc
+++ b/extensions/browser/api/web_view/web_view_internal_api.cc
@@ -93,7 +93,7 @@ bool WebViewInternalExecuteCodeFunction::Init() {
   if (!guest_src_.is_valid())
     return false;
 
-  base::DictionaryValue* details_value = NULL;
+  base::DictionaryValue* details_value = nullptr;
   if (!args_->GetDictionary(2, &details_value))
     return false;
   scoped_ptr<InjectDetails> details(new InjectDetails());
@@ -117,7 +117,7 @@ WebViewInternalExecuteCodeFunction::GetScriptExecutor() {
   WebViewGuest* guest = WebViewGuest::From(
       render_view_host()->GetProcess()->GetID(), guest_instance_id_);
   if (!guest)
-    return NULL;
+    return nullptr;
 
   return guest->script_executor();
 }
@@ -166,7 +166,7 @@ WebContents* WebViewInternalCaptureVisibleRegionFunction::GetWebContentsForID(
     int instance_id) {
   WebViewGuest* guest = WebViewGuest::From(
       render_view_host()->GetProcess()->GetID(), instance_id);
-  return guest ? guest->web_contents() : NULL;
+  return guest ? guest->web_contents() : nullptr;
 }
 
 void WebViewInternalCaptureVisibleRegionFunction::OnCaptureFailure(