From 60a4faa5783f61288a249cb3115943a45be4e48d Mon Sep 17 00:00:00 2001
From: Valentin Shergin <shergin@fb.com>
Date: Mon, 24 Sep 2018 12:54:24 -0700
Subject: [PATCH] Fabric: Proper includes in ContextContainer

Summary: Trivial. Suddenly, compiler is unhappy without all proper headers.

Reviewed By: mdvacca

Differential Revision: D9884891

fbshipit-source-id: 7a5b175923f06bdb87bff8c9aad9f4ee40febbe9
---
 ReactCommon/fabric/uimanager/ContextContainer.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ReactCommon/fabric/uimanager/ContextContainer.h b/ReactCommon/fabric/uimanager/ContextContainer.h
index d1a56454d3f..0b76b861be9 100644
--- a/ReactCommon/fabric/uimanager/ContextContainer.h
+++ b/ReactCommon/fabric/uimanager/ContextContainer.h
@@ -7,9 +7,11 @@
 
 #include <memory>
 #include <mutex>
+#include <string>
 #include <typeindex>
 #include <typeinfo>
 #include <unordered_map>
+#include <utility>
 
 namespace facebook {
 namespace react {
@@ -31,7 +33,7 @@ public:
    * by `{type, key}` pair.
    */
   template<typename T>
-  void registerInstance(const T &instance, const std::string &key = "") {
+  void registerInstance(const T &instance, const std::string &key = {}) {
     std::lock_guard<std::mutex> lock(mutex_);
 
     instances_.insert({
@@ -46,7 +48,7 @@ public:
    * by {type, key} pair.
    */
   template<typename T>
-  T getInstance(const std::string &key = "") const {
+  T getInstance(const std::string &key = {}) const {
     std::lock_guard<std::mutex> lock(mutex_);
 
     return *std::static_pointer_cast<T>(instances_.at({std::type_index(typeid(T)), key}));