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diff --git a/src/3rdparty/v8/src/incremental-marking-inl.h b/src/3rdparty/v8/src/incremental-marking-inl.h
deleted file mode 100644
index 1c30383..0000000
--- a/src/3rdparty/v8/src/incremental-marking-inl.h
+++ /dev/null
@@ -1,145 +0,0 @@
-// 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
-//       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_INCREMENTAL_MARKING_INL_H_
-#define V8_INCREMENTAL_MARKING_INL_H_
-
-#include "incremental-marking.h"
-
-namespace v8 {
-namespace internal {
-
-
-bool IncrementalMarking::BaseRecordWrite(HeapObject* obj,
-                                         Object** slot,
-                                         Object* value) {
-  HeapObject* value_heap_obj = HeapObject::cast(value);
-  MarkBit value_bit = Marking::MarkBitFrom(value_heap_obj);
-  if (Marking::IsWhite(value_bit)) {
-    MarkBit obj_bit = Marking::MarkBitFrom(obj);
-    if (Marking::IsBlack(obj_bit)) {
-      MemoryChunk* chunk = MemoryChunk::FromAddress(obj->address());
-      if (chunk->IsFlagSet(MemoryChunk::HAS_PROGRESS_BAR)) {
-        if (chunk->IsLeftOfProgressBar(slot)) {
-          WhiteToGreyAndPush(value_heap_obj, value_bit);
-          RestartIfNotMarking();
-        } else {
-          return false;
-        }
-      } else {
-        BlackToGreyAndUnshift(obj, obj_bit);
-        RestartIfNotMarking();
-        return false;
-      }
-    } else {
-      return false;
-    }
-  }
-  if (!is_compacting_) return false;
-  MarkBit obj_bit = Marking::MarkBitFrom(obj);
-  return Marking::IsBlack(obj_bit);
-}
-
-
-void IncrementalMarking::RecordWrite(HeapObject* obj,
-                                     Object** slot,
-                                     Object* value) {
-  if (IsMarking() && value->NonFailureIsHeapObject()) {
-    RecordWriteSlow(obj, slot, value);
-  }
-}
-
-
-void IncrementalMarking::RecordWriteOfCodeEntry(JSFunction* host,
-                                                Object** slot,
-                                                Code* value) {
-  if (IsMarking()) RecordWriteOfCodeEntrySlow(host, slot, value);
-}
-
-
-void IncrementalMarking::RecordWriteIntoCode(HeapObject* obj,
-                                             RelocInfo* rinfo,
-                                             Object* value) {
-  if (IsMarking() && value->NonFailureIsHeapObject()) {
-    RecordWriteIntoCodeSlow(obj, rinfo, value);
-  }
-}
-
-
-void IncrementalMarking::RecordWrites(HeapObject* obj) {
-  if (IsMarking()) {
-    MarkBit obj_bit = Marking::MarkBitFrom(obj);
-    if (Marking::IsBlack(obj_bit)) {
-      MemoryChunk* chunk = MemoryChunk::FromAddress(obj->address());
-      if (chunk->IsFlagSet(MemoryChunk::HAS_PROGRESS_BAR)) {
-        chunk->set_progress_bar(0);
-      }
-      BlackToGreyAndUnshift(obj, obj_bit);
-      RestartIfNotMarking();
-    }
-  }
-}
-
-
-void IncrementalMarking::BlackToGreyAndUnshift(HeapObject* obj,
-                                               MarkBit mark_bit) {
-  ASSERT(Marking::MarkBitFrom(obj) == mark_bit);
-  ASSERT(obj->Size() >= 2*kPointerSize);
-  ASSERT(IsMarking());
-  Marking::BlackToGrey(mark_bit);
-  int obj_size = obj->Size();
-  MemoryChunk::IncrementLiveBytesFromGC(obj->address(), -obj_size);
-  bytes_scanned_ -= obj_size;
-  int64_t old_bytes_rescanned = bytes_rescanned_;
-  bytes_rescanned_ = old_bytes_rescanned + obj_size;
-  if ((bytes_rescanned_ >> 20) != (old_bytes_rescanned >> 20)) {
-    if (bytes_rescanned_ > 2 * heap_->PromotedSpaceSizeOfObjects()) {
-      // If we have queued twice the heap size for rescanning then we are
-      // going around in circles, scanning the same objects again and again
-      // as the program mutates the heap faster than we can incrementally
-      // trace it.  In this case we switch to non-incremental marking in
-      // order to finish off this marking phase.
-      if (FLAG_trace_gc) {
-        PrintPID("Hurrying incremental marking because of lack of progress\n");
-      }
-      marking_speed_ = kMaxMarkingSpeed;
-    }
-  }
-
-  marking_deque_.UnshiftGrey(obj);
-}
-
-
-void IncrementalMarking::WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit) {
-  Marking::WhiteToGrey(mark_bit);
-  marking_deque_.PushGrey(obj);
-}
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_INCREMENTAL_MARKING_INL_H_