[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/allocation.h

 // Copyright 2008 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 22 matching lines @@
 
 // Called when allocation routines fail to allocate.
 // This function should not return, but should terminate the current
 // processing.
 void FatalProcessOutOfMemory(const char* message);
 
 // A class that controls whether allocation is allowed.  This is for
 // the C++ heap only!
 class NativeAllocationChecker {
  public:
-  typedef enum { ALLOW, DISALLOW } NativeAllocationAllowed;
-  explicit inline NativeAllocationChecker(NativeAllocationAllowed allowed);
-  inline ~NativeAllocationChecker();
-  static inline bool allocation_allowed();
+  enum NativeAllocationAllowed { ALLOW, DISALLOW };
+#ifdef DEBUG
+  explicit NativeAllocationChecker(NativeAllocationAllowed allowed);
+  ~NativeAllocationChecker();
+  static bool allocation_allowed();
  private:
   // This flag applies to this particular instance.
   NativeAllocationAllowed allowed_;
+#else
+  explicit inline NativeAllocationChecker(NativeAllocationAllowed allowed) {}
+  static inline bool allocation_allowed() { return true; }
+#endif
 };
 
 
 // Superclass for classes managed with new & delete.
 class Malloced {
  public:
   void* operator new(size_t size) { return New(size); }
   void  operator delete(void* p) { Delete(p); }
 
   static void FatalProcessOutOfMemory();
@@ skipping 86 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PreallocatedStorage);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ALLOCATION_H_