Refactor and cleanup VirtualMemory.

src/heap-inl.h

 // 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 126 matching lines @@
   if (str.length() > SeqOneByteString::kMaxLength) {
     return Failure::OutOfMemoryException(0x2);
   }
   // Compute map and object size.
   Map* map = ascii_internalized_string_map();
   int size = SeqOneByteString::SizeFor(str.length());
 
   // Allocate string.
   Object* result;
   { MaybeObject* maybe_result = (size > Page::kMaxNonCodeHeapObjectSize)
-                   ? lo_space_->AllocateRaw(size, NOT_EXECUTABLE)
+                   ? lo_space_->AllocateRaw(size, VirtualMemory::NOT_EXECUTABLE)
                    : old_data_space_->AllocateRaw(size);
     if (!maybe_result->ToObject(&result)) return maybe_result;
   }
 
   // String maps are all immortal immovable objects.
   reinterpret_cast<HeapObject*>(result)->set_map_no_write_barrier(map);
   // Set length and hash fields of the allocated string.
   String* answer = String::cast(result);
   answer->set_length(str.length());
   answer->set_hash_field(hash_field);
@@ skipping 13 matching lines @@
   if (str.length() > SeqTwoByteString::kMaxLength) {
     return Failure::OutOfMemoryException(0x3);
   }
   // Compute map and object size.
   Map* map = internalized_string_map();
   int size = SeqTwoByteString::SizeFor(str.length());
 
   // Allocate string.
   Object* result;
   { MaybeObject* maybe_result = (size > Page::kMaxNonCodeHeapObjectSize)
-                   ? lo_space_->AllocateRaw(size, NOT_EXECUTABLE)
+                   ? lo_space_->AllocateRaw(size, VirtualMemory::NOT_EXECUTABLE)
                    : old_data_space_->AllocateRaw(size);
     if (!maybe_result->ToObject(&result)) return maybe_result;
   }
 
   reinterpret_cast<HeapObject*>(result)->set_map(map);
   // Set length and hash fields of the allocated string.
   String* answer = String::cast(result);
   answer->set_length(str.length());
   answer->set_hash_field(hash_field);
 
@@ skipping 43 matching lines @@
     }
   }
 
   if (OLD_POINTER_SPACE == space) {
     result = old_pointer_space_->AllocateRaw(size_in_bytes);
   } else if (OLD_DATA_SPACE == space) {
     result = old_data_space_->AllocateRaw(size_in_bytes);
   } else if (CODE_SPACE == space) {
     result = code_space_->AllocateRaw(size_in_bytes);
   } else if (LO_SPACE == space) {
-    result = lo_space_->AllocateRaw(size_in_bytes, NOT_EXECUTABLE);
+    result = lo_space_->AllocateRaw(
+        size_in_bytes, VirtualMemory::NOT_EXECUTABLE);
   } else if (CELL_SPACE == space) {
     result = cell_space_->AllocateRaw(size_in_bytes);
   } else if (PROPERTY_CELL_SPACE == space) {
     result = property_cell_space_->AllocateRaw(size_in_bytes);
   } else {
     ASSERT(MAP_SPACE == space);
     result = map_space_->AllocateRaw(size_in_bytes);
   }
   if (result->IsFailure()) old_gen_exhausted_ = true;
   return result;
@@ skipping 625 matching lines @@
 DisallowAllocationFailure::~DisallowAllocationFailure() {
 #ifdef DEBUG
   HEAP->disallow_allocation_failure_ = old_state_;
 #endif
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_