Maintain API compatibility with older versions of V8.

src/heap-snapshot-generator.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 139 matching lines @@
 
 class HeapSnapshotsCollection;
 
 // HeapSnapshot represents a single heap snapshot. It is stored in
 // HeapSnapshotsCollection, which is also a factory for
 // HeapSnapshots. All HeapSnapshots share strings copied from JS heap
 // to be able to return them even if they were collected.
 // HeapSnapshotGenerator fills in a HeapSnapshot.
 class HeapSnapshot {
  public:
+  enum Type {
+    kFull = v8::HeapSnapshot::kFull
+  };
+
   HeapSnapshot(HeapSnapshotsCollection* collection,
+               Type type,
                const char* title,
                unsigned uid);
   void Delete();
 
   HeapSnapshotsCollection* collection() { return collection_; }
+  Type type() { return type_; }
   const char* title() { return title_; }
   unsigned uid() { return uid_; }
   size_t RawSnapshotSize() const;
   HeapEntry* root() { return &entries_[root_index_]; }
   HeapEntry* gc_roots() { return &entries_[gc_roots_index_]; }
   HeapEntry* natives_root() { return &entries_[natives_root_index_]; }
   HeapEntry* gc_subroot(int index) {
     return &entries_[gc_subroot_indexes_[index]];
   }
   List<HeapEntry>& entries() { return entries_; }
@@ skipping 14 matching lines @@
   HeapEntry* AddNativesRootEntry();
   HeapEntry* GetEntryById(SnapshotObjectId id);
   List<HeapEntry*>* GetSortedEntriesList();
   void FillChildren();
 
   void Print(int max_depth);
   void PrintEntriesSize();
 
  private:
   HeapSnapshotsCollection* collection_;
+  Type type_;
   const char* title_;
   unsigned uid_;
   int root_index_;
   int gc_roots_index_;
   int natives_root_index_;
   int gc_subroot_indexes_[VisitorSynchronization::kNumberOfSyncTags];
   List<HeapEntry> entries_;
   List<HeapGraphEdge> edges_;
   List<HeapGraphEdge*> children_;
   List<HeapEntry*> sorted_entries_;
@@ skipping 81 matching lines @@
 
   Heap* heap() const { return ids_.heap(); }
 
   bool is_tracking_objects() { return is_tracking_objects_; }
   SnapshotObjectId PushHeapObjectsStats(OutputStream* stream) {
     return ids_.PushHeapObjectsStats(stream);
   }
   void StartHeapObjectsTracking() { is_tracking_objects_ = true; }
   void StopHeapObjectsTracking() { ids_.StopHeapObjectsTracking(); }
 
-  HeapSnapshot* NewSnapshot(const char* name, unsigned uid);
+  HeapSnapshot* NewSnapshot(
+      HeapSnapshot::Type type, const char* name, unsigned uid);
   void SnapshotGenerationFinished(HeapSnapshot* snapshot);
   List<HeapSnapshot*>* snapshots() { return &snapshots_; }
   HeapSnapshot* GetSnapshot(unsigned uid);
   void RemoveSnapshot(HeapSnapshot* snapshot);
 
   StringsStorage* names() { return &names_; }
   TokenEnumerator* token_enumerator() { return token_enumerator_; }
 
   SnapshotObjectId FindObjectId(Address object_addr) {
     return ids_.FindEntry(object_addr);
@@ skipping 369 matching lines @@
   friend class HeapSnapshotJSONSerializerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotJSONSerializer);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_SNAPSHOT_GENERATOR_H_