Add a host parameter to ObjectVisitor methods.

src/profiler/heap-snapshot-generator.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/profiler/heap-snapshot-generator.h"
 
 #include <utility>
 
 #include "src/api.h"
 #include "src/code-stubs.h"
@@ skipping 955 matching lines @@
 class IndexedReferencesExtractor : public ObjectVisitor {
  public:
   IndexedReferencesExtractor(V8HeapExplorer* generator, HeapObject* parent_obj,
                              int parent)
       : generator_(generator),
         parent_obj_(parent_obj),
         parent_start_(HeapObject::RawField(parent_obj_, 0)),
         parent_end_(HeapObject::RawField(parent_obj_, parent_obj_->Size())),
         parent_(parent),
         next_index_(0) {}
-  void VisitCodeEntry(Address entry_address) override {
-     Code* code = Code::cast(Code::GetObjectFromEntryAddress(entry_address));
-     generator_->SetInternalReference(parent_obj_, parent_, "code", code);
-     generator_->TagCodeObject(code);
+  void VisitCodeEntry(JSFunction* host, Address entry_address) override {
+    Code* code = Code::cast(Code::GetObjectFromEntryAddress(entry_address));
+    generator_->SetInternalReference(parent_obj_, parent_, "code", code);
+    generator_->TagCodeObject(code);
   }
-  void VisitPointers(Object** start, Object** end) override {
+  void VisitPointers(HeapObject* host, Object** start, Object** end) override {
     for (Object** p = start; p < end; p++) {
       int index = static_cast<int>(p - HeapObject::RawField(parent_obj_, 0));
       ++next_index_;
       // |p| could be outside of the object, e.g., while visiting RelocInfo of
       // code objects.
       if (p >= parent_start_ && p < parent_end_ && generator_->marks_[index]) {
         generator_->marks_[index] = false;
         continue;
       }
       generator_->SetHiddenReference(parent_obj_, parent_, next_index_, *p,
@@ skipping 2144 matching lines @@
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8