Port count-based profiler to x64

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index 58d59862a5dc1703d91d0baf43e4fffde9ed4af4..a308d83ae2d14e5690e05c3ebae58e8986f53276 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -90,15 +90,10 @@ class FullCodeGenerator: public AstVisitor {
         stack_checks_(2),  // There's always at least one.
         type_feedback_cells_(info->HasDeoptimizationSupport()
                              ? info->function()->ast_node_count() : 0),
-        ic_total_count_(0),
-        has_self_optimization_header_(false) { }
+        ic_total_count_(0) { }
 
   static bool MakeCode(CompilationInfo* info);
 
-  // Returns the platform-specific size in bytes of the self-optimization
-  // header.
-  static int self_optimization_header_size();
-
   // Encode state and pc-offset as a BitField<type, start, size>.
   // Only use 30 bits because we encode the result as a smi.
   class StateField : public BitField<State, 0, 1> { };
@@ -796,7 +791,6 @@ class FullCodeGenerator: public AstVisitor {
   ZoneList<BailoutEntry> stack_checks_;
   ZoneList<TypeFeedbackCellEntry> type_feedback_cells_;
   int ic_total_count_;
-  bool has_self_optimization_header_;
   Handle<FixedArray> handler_table_;
   Handle<JSGlobalPropertyCell> profiling_counter_;