Drop OS::IsOutsideAllocatedSpace() and move the tracking to the MemoryAllocator.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 037a7a16ea2c246427f8ed12b61ccbfae7378466..7be53c51201027e8ee4b28a437fd41b9deed9f4a 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -6204,7 +6204,7 @@ bool Heap::Contains(HeapObject* value) {
 
 
 bool Heap::Contains(Address addr) {
-  if (OS::IsOutsideAllocatedSpace(addr)) return false;
+  if (isolate_->memory_allocator()->IsOutsideAllocatedSpace(addr)) return false;
   return HasBeenSetUp() &&
     (new_space_.ToSpaceContains(addr) ||
      old_pointer_space_->Contains(addr) ||
@@ -6223,7 +6223,7 @@ bool Heap::InSpace(HeapObject* value, AllocationSpace space) {
 
 
 bool Heap::InSpace(Address addr, AllocationSpace space) {
-  if (OS::IsOutsideAllocatedSpace(addr)) return false;
+  if (isolate_->memory_allocator()->IsOutsideAllocatedSpace(addr)) return false;
   if (!HasBeenSetUp()) return false;
 
   switch (space) {