Use MemoryChunk-based allocation for deoptimization entry code

src/spaces.h

Index: src/spaces.h
===================================================================
--- src/spaces.h	(revision 13384)
+++ src/spaces.h	(working copy)
@@ -653,6 +653,8 @@
 
   static inline void UpdateHighWaterMark(Address mark);
 
+  bool RecommitBody(size_t body_size, Executability executable);
+
  protected:
   MemoryChunk* next_chunk_;
   MemoryChunk* prev_chunk_;
@@ -888,7 +890,9 @@
   // the code range.  On platforms with no separate code range, should
   // not be called.
   MUST_USE_RESULT Address AllocateRawMemory(const size_t requested,
-                                            size_t* allocated);
+                                            size_t* allocated,
+                                            size_t initial_commit_size);
+  bool RecommitRawMemory(Address start, size_t length);
   void FreeRawMemory(Address buf, size_t length);
 
  private:
@@ -1037,6 +1041,7 @@
 #endif
 
   MemoryChunk* AllocateChunk(intptr_t body_size,
+                             intptr_t commit_size,
                              Executability executable,
                              Space* space);
 
@@ -1045,6 +1050,7 @@
                                VirtualMemory* controller);
   Address AllocateAlignedMemory(size_t requested,
                                 size_t alignment,
+                                size_t initial_commit_size,
                                 Executability executable,
                                 VirtualMemory* controller);