Remove deprecated v8::base::OS::nan_value().

src/runtime/runtime-numbers.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 211 matching lines @@
 
   return *isolate->factory()->NewNumber(value);
 }
 
 
 RUNTIME_FUNCTION(Runtime_StringParseFloat) {
   HandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(String, subject, 0);
 
-  double value = StringToDouble(isolate->unicode_cache(), subject,
-                                ALLOW_TRAILING_JUNK, base::OS::nan_value());
+  double value =
+      StringToDouble(isolate->unicode_cache(), subject, ALLOW_TRAILING_JUNK,
+                     std::numeric_limits<double>::quiet_NaN());
 
   return *isolate->factory()->NewNumber(value);
 }
 
 
 RUNTIME_FUNCTION(Runtime_NumberToStringRT) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(number, 0);
 
@@ skipping 343 matching lines @@
 
 RUNTIME_FUNCTION(RuntimeReference_IsNonNegativeSmi) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsSmi() &&
                                     Smi::cast(obj)->value() >= 0);
 }
 }
 }  // namespace v8::internal