A little code refactoring on VirtualMemory::Commit for platform-win32

src/platform-win32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1519 matching lines @@
 }
 
 
 void VirtualMemory::Reset() {
   address_ = NULL;
   size_ = 0;
 }
 
 
 bool VirtualMemory::Commit(void* address, size_t size, bool is_executable) {
-  if (CommitRegion(address, size, is_executable)) {
-    UpdateAllocatedSpaceLimits(address, static_cast<int>(size));
-    return true;
-  }
-  return false;
+  return CommitRegion(address, size, is_executable);
 }
 
 
 bool VirtualMemory::Uncommit(void* address, size_t size) {
   ASSERT(IsReserved());
   return UncommitRegion(address, size);
 }
 
 
 bool VirtualMemory::Guard(void* address) {
@@ skipping 620 matching lines @@
 
 
 void Sampler::Stop() {
   ASSERT(IsActive());
   SamplerThread::RemoveActiveSampler(this);
   SetActive(false);
 }
 
 
 } }  // namespace v8::internal