Reverting 3159, 3151 and 3150

src/codegen.h

Index: src/codegen.h
===================================================================
--- src/codegen.h	(revision 3173)
+++ src/codegen.h	(working copy)
@@ -301,7 +301,7 @@
                     Label* throw_normal_exception,
                     Label* throw_termination_exception,
                     Label* throw_out_of_memory_exception,
-                    ExitFrame::Mode mode,
+                    StackFrame::Type frame_type,
                     bool do_gc,
                     bool always_allocate_scope);
   void GenerateThrowTOS(MacroAssembler* masm);
@@ -320,32 +320,6 @@
 };
 
 
-class ApiGetterEntryStub : public CodeStub {
- public:
-  ApiGetterEntryStub(Handle<AccessorInfo> info,
-                     ApiFunction* fun)
-      : info_(info),
-        fun_(fun) { }
-  void Generate(MacroAssembler* masm);
-  virtual bool has_custom_cache() { return true; }
-  virtual bool GetCustomCache(Code** code_out);
-  virtual void SetCustomCache(Code* value);
-
-  static const int kStackSpace = 6;
-  static const int kArgc = 4;
- private:
-  Handle<AccessorInfo> info() { return info_; }
-  ApiFunction* fun() { return fun_; }
-  Major MajorKey() { return NoCache; }
-  int MinorKey() { return 0; }
-  const char* GetName() { return "ApiEntryStub"; }
-  // The accessor info associated with the function.
-  Handle<AccessorInfo> info_;
-  // The function to be called.
-  ApiFunction* fun_;
-};
-
-
 class CEntryDebugBreakStub : public CEntryStub {
  public:
   CEntryDebugBreakStub() : CEntryStub(1) { }