Remove mutex locks in SchemeRegistry

third_party/WebKit/Source/wtf/ThreadingWin.cpp

Index: third_party/WebKit/Source/wtf/ThreadingWin.cpp
diff --git a/third_party/WebKit/Source/wtf/ThreadingWin.cpp b/third_party/WebKit/Source/wtf/ThreadingWin.cpp
index 8df017dd2a54e074ac5d9485d09b0fbed2de1d45..c448db783626f7d71ab29a5f1e5423626300c8ef 100644
--- a/third_party/WebKit/Source/wtf/ThreadingWin.cpp
+++ b/third_party/WebKit/Source/wtf/ThreadingWin.cpp
@@ -404,6 +404,14 @@ bool isBeforeThreadCreated() {
 void willCreateThread() {
   s_threadCreated = true;
 }
+#else
+bool isAtomicallyInitializedStaticMutexLockHeld() {
+  return false;
+}
+bool isBeforeThreadCreated() {
+  return false;
+}
+void willCreateThread() {}
 #endif
 
 }  // namespace WTF