Reduce initial boot-up memory use. This is an other attempt at what

src/spaces-inl.h

Index: src/spaces-inl.h
===================================================================
--- src/spaces-inl.h	(revision 11201)
+++ src/spaces-inl.h	(working copy)
@@ -164,7 +164,7 @@
                        Executability executable,
                        PagedSpace* owner) {
   Page* page = reinterpret_cast<Page*>(chunk);
-  ASSERT(chunk->size() == static_cast<size_t>(kPageSize));
+  ASSERT(chunk->size() <= static_cast<size_t>(kPageSize));
   ASSERT(chunk->owner() == owner);
   owner->IncreaseCapacity(page->area_size());
   owner->Free(page->area_start(), page->area_size());