Two tiny refactorings: Removed a bit of copy-n-paste. Moved LargeObjectChunk::Free from header to...

src/spaces.cc

Index: src/spaces.cc
===================================================================
--- src/spaces.cc	(revision 9014)
+++ src/spaces.cc	(working copy)
@@ -2722,12 +2722,17 @@
 
   LargeObjectChunk* chunk = reinterpret_cast<LargeObjectChunk*>(mem);
   chunk->size_ = size;
-  Page* page = Page::FromAddress(RoundUp(chunk->address(), Page::kPageSize));
-  page->heap_ = isolate->heap();
+  chunk->GetPage()->heap_ = isolate->heap();
   return chunk;
 }
 
 
+void LargeObjectChunk::Free(Executability executable) {
+  Isolate* isolate = GetPage()->heap_->isolate();
+  isolate->memory_allocator()->FreeRawMemory(address(), size(), executable);
+}
+
+
 int LargeObjectChunk::ChunkSizeFor(int size_in_bytes) {
   int os_alignment = static_cast<int>(OS::AllocateAlignment());
   if (os_alignment < Page::kPageSize) {
@@ -2761,8 +2766,7 @@
     LargeObjectChunk* chunk = first_chunk_;
     first_chunk_ = first_chunk_->next();
     LOG(heap()->isolate(), DeleteEvent("LargeObjectChunk", chunk->address()));
-    Page* page = Page::FromAddress(RoundUp(chunk->address(), Page::kPageSize));
-    Executability executable = page->PageExecutability();
+    Executability executable = chunk->GetPage()->PageExecutability();
     ObjectSpace space = kObjectSpaceLoSpace;
     if (executable == EXECUTABLE) space = kObjectSpaceCodeSpace;
     size_t size = chunk->size();
@@ -2805,7 +2809,7 @@
   first_chunk_ = chunk;
 
   // Initialize page header.
-  Page* page = Page::FromAddress(RoundUp(chunk->address(), Page::kPageSize));
+  Page* page = chunk->GetPage();
   Address object_address = page->ObjectAreaStart();
 
   // Clear the low order bit of the second word in the page to flag it as a
@@ -2943,9 +2947,7 @@
       previous = current;
       current = current->next();
     } else {
-      Page* page = Page::FromAddress(RoundUp(current->address(),
-                                     Page::kPageSize));
-      Executability executable = page->PageExecutability();
+      Executability executable = current->GetPage()->PageExecutability();
       Address chunk_address = current->address();
       size_t chunk_size = current->size();