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diff --git a/src/3rdparty/v8/src/zone-inl.h b/src/3rdparty/v8/src/zone-inl.h
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+// Copyright 2011 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
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_ZONE_INL_H_
+#define V8_ZONE_INL_H_
+
+#include "isolate.h"
+#include "zone.h"
+#include "v8-counters.h"
+
+namespace v8 {
+namespace internal {
+
+
+AssertNoZoneAllocation::AssertNoZoneAllocation()
+    : prev_(Isolate::Current()->zone_allow_allocation()) {
+  Isolate::Current()->set_zone_allow_allocation(false);
+}
+
+
+AssertNoZoneAllocation::~AssertNoZoneAllocation() {
+  Isolate::Current()->set_zone_allow_allocation(prev_);
+}
+
+
+inline void* Zone::New(int size) {
+  ASSERT(Isolate::Current()->zone_allow_allocation());
+  ASSERT(ZoneScope::nesting() > 0);
+  // Round up the requested size to fit the alignment.
+  size = RoundUp(size, kAlignment);
+
+  // Check if the requested size is available without expanding.
+  Address result = position_;
+  if ((position_ += size) > limit_) result = NewExpand(size);
+
+  // Check that the result has the proper alignment and return it.
+  ASSERT(IsAddressAligned(result, kAlignment, 0));
+  allocation_size_ += size;
+  return reinterpret_cast<void*>(result);
+}
+
+
+template <typename T>
+T* Zone::NewArray(int length) {
+  return static_cast<T*>(New(length * sizeof(T)));
+}
+
+
+bool Zone::excess_allocation() {
+  return segment_bytes_allocated_ > zone_excess_limit_;
+}
+
+
+void Zone::adjust_segment_bytes_allocated(int delta) {
+  segment_bytes_allocated_ += delta;
+  isolate_->counters()->zone_segment_bytes()->Set(segment_bytes_allocated_);
+}
+
+
+template <typename Config>
+ZoneSplayTree<Config>::~ZoneSplayTree() {
+  // Reset the root to avoid unneeded iteration over all tree nodes
+  // in the destructor.  For a zone-allocated tree, nodes will be
+  // freed by the Zone.
+  SplayTree<Config, ZoneListAllocationPolicy>::ResetRoot();
+}
+
+
+// TODO(isolates): for performance reasons, this should be replaced with a new
+//                 operator that takes the zone in which the object should be
+//                 allocated.
+void* ZoneObject::operator new(size_t size) {
+  return ZONE->New(static_cast<int>(size));
+}
+
+void* ZoneObject::operator new(size_t size, Zone* zone) {
+  return zone->New(static_cast<int>(size));
+}
+
+
+inline void* ZoneListAllocationPolicy::New(int size) {
+  return ZONE->New(size);
+}
+
+
+ZoneScope::ZoneScope(ZoneScopeMode mode)
+    : isolate_(Isolate::Current()),
+      mode_(mode) {
+  isolate_->zone()->scope_nesting_++;
+}
+
+
+bool ZoneScope::ShouldDeleteOnExit() {
+  return isolate_->zone()->scope_nesting_ == 1 && mode_ == DELETE_ON_EXIT;
+}
+
+
+int ZoneScope::nesting() {
+  return Isolate::Current()->zone()->scope_nesting_;
+}
+
+
+} }  // namespace v8::internal
+
+#endif  // V8_ZONE_INL_H_