[heap] Simplify adjusting of live bytes.

src/runtime/runtime-regexp.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/conversions-inl.h"
 #include "src/isolate-inl.h"
 #include "src/messages.h"
@@ skipping 634 matching lines @@
 
   // The trimming is performed on a newly allocated object, which is on a
   // fresly allocated page or on an already swept page. Hence, the sweeper
   // thread can not get confused with the filler creation. No synchronization
   // needed.
   // TODO(hpayer): We should shrink the large object page if the size
   // of the object changed significantly.
   if (!heap->lo_space()->Contains(*answer)) {
     heap->CreateFillerObjectAt(end_of_string, delta, ClearRecordedSlots::kNo);
   }
-  heap->AdjustLiveBytes(*answer, -delta, Heap::CONCURRENT_TO_SWEEPER);
+  heap->AdjustLiveBytes(*answer, -delta);
   return *answer;
 }
 
 namespace {
 
 Object* StringReplaceGlobalRegExpWithStringHelper(
     Isolate* isolate, Handle<JSRegExp> regexp, Handle<String> subject,
     Handle<String> replacement, Handle<RegExpMatchInfo> last_match_info) {
   CHECK(regexp->GetFlags() & JSRegExp::kGlobal);
 
@@ skipping 785 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_IsRegExp) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsJSRegExp());
 }
 
 }  // namespace internal
 }  // namespace v8