Inline fast case of the method that ensures that an array has a

src/objects.h

Index: src/objects.h
===================================================================
--- src/objects.h	(revision 2199)
+++ src/objects.h	(working copy)
@@ -3982,7 +3982,7 @@
 
   // Uses handles.  Ensures that the fixed array backing the JSArray has at
   // least the stated size.
-  void EnsureSize(int minimum_size_of_backing_fixed_array);
+  inline void EnsureSize(int minimum_size_of_backing_fixed_array);
 
   // Dispatched behavior.
 #ifdef DEBUG
@@ -3995,6 +3995,10 @@
   static const int kSize = kLengthOffset + kPointerSize;
 
  private:
+  // Expand the fixed array backing of a fast-case JSArray to at least
+  // the requested size.
+  void Expand(int minimum_size_of_backing_fixed_array);
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSArray);
 };