Use a filter instead of a visitor to deoptimize selected functions in a context.

src/liveedit.cc

Index: src/liveedit.cc
diff --git a/src/liveedit.cc b/src/liveedit.cc
index f491e372047f9e7eadb376a7eb9f1b41d40b27d6..abb00993120dee48512ac48d997ecbe53c61ceae 100644
--- a/src/liveedit.cc
+++ b/src/liveedit.cc
@@ -1223,23 +1223,15 @@ static bool IsInlined(JSFunction* function, SharedFunctionInfo* candidate) {
 }
 
 
-class DependentFunctionsDeoptimizingVisitor : public OptimizedFunctionVisitor {
+class DependentFunctionFilter : public OptimizedFunctionFilter {
  public:
-  explicit DependentFunctionsDeoptimizingVisitor(
+  explicit DependentFunctionFilter(
       SharedFunctionInfo* function_info)
       : function_info_(function_info) {}
 
-  virtual void EnterContext(Context* context) {
-  }
-
-  virtual void VisitFunction(JSFunction* function) {
-    if (function->shared() == function_info_ ||
-        IsInlined(function, function_info_)) {
-      Deoptimizer::DeoptimizeFunction(function);
-    }
-  }
-
-  virtual void LeaveContext(Context* context) {
+  virtual bool TakeFunction(JSFunction* function) {
+    return (function->shared() == function_info_ ||
+            IsInlined(function, function_info_));
   }
 
  private:
@@ -1250,8 +1242,8 @@ class DependentFunctionsDeoptimizingVisitor : public OptimizedFunctionVisitor {
 static void DeoptimizeDependentFunctions(SharedFunctionInfo* function_info) {
   AssertNoAllocation no_allocation;
 
-  DependentFunctionsDeoptimizingVisitor visitor(function_info);
-  Deoptimizer::VisitAllOptimizedFunctions(&visitor);
+  DependentFunctionFilter filter(function_info);
+  Deoptimizer::DeoptimizeAllFunctionsWith(&filter);
 }