Move platform abstraction to base library

src/spaces-inl.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_SPACES_INL_H_
 #define V8_SPACES_INL_H_
 
 #include "src/heap-profiler.h"
 #include "src/isolate.h"
 #include "src/spaces.h"
@@ skipping 91 matching lines @@
   return NULL;
 }
 
 
 // -----------------------------------------------------------------------------
 // MemoryAllocator
 
 #ifdef ENABLE_HEAP_PROTECTION
 
 void MemoryAllocator::Protect(Address start, size_t size) {
-  OS::Protect(start, size);
+  base::OS::Protect(start, size);
 }
 
 
 void MemoryAllocator::Unprotect(Address start,
                                 size_t size,
                                 Executability executable) {
-  OS::Unprotect(start, size, executable);
+  base::OS::Unprotect(start, size, executable);
 }
 
 
 void MemoryAllocator::ProtectChunkFromPage(Page* page) {
   int id = GetChunkId(page);
-  OS::Protect(chunks_[id].address(), chunks_[id].size());
+  base::OS::Protect(chunks_[id].address(), chunks_[id].size());
 }
 
 
 void MemoryAllocator::UnprotectChunkFromPage(Page* page) {
   int id = GetChunkId(page);
-  OS::Unprotect(chunks_[id].address(), chunks_[id].size(),
-                chunks_[id].owner()->executable() == EXECUTABLE);
+  base::OS::Unprotect(chunks_[id].address(), chunks_[id].size(),
+                      chunks_[id].owner()->executable() == EXECUTABLE);
 }
 
 #endif
 
 
 // --------------------------------------------------------------------------
 // PagedSpace
 Page* Page::Initialize(Heap* heap,
                        MemoryChunk* chunk,
                        Executability executable,
@@ skipping 163 matching lines @@
   Map* map = object->map();
   Heap* heap = object->GetHeap();
   return map == heap->raw_unchecked_free_space_map()
       || map == heap->raw_unchecked_one_pointer_filler_map()
       || map == heap->raw_unchecked_two_pointer_filler_map();
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_SPACES_INL_H_