Delete old GC related APIs.

Blink doesn't use them any more, and they have no other known users either.

BUG=
R=dcarney@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/16124004

Patch from Marja Hölttä <marja@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14872 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -4367,41 +4367,6 @@ class V8EXPORT V8 {
    */
   static void RemoveCallCompletedCallback(CallCompletedCallback callback);
 
-  /**
-   * Allows the host application to group objects together. If one
-   * object in the group is alive, all objects in the group are alive.
-   * After each garbage collection, object groups are removed. It is
-   * intended to be used in the before-garbage-collection callback
-   * function, for instance to simulate DOM tree connections among JS
-   * wrapper objects. Object groups for all dependent handles need to
-   * be provided for kGCTypeMarkSweepCompact collections, for all other
-   * garbage collection types it is sufficient to provide object groups
-   * for partially dependent handles only.
-   * See v8-profiler.h for RetainedObjectInfo interface description.
-   */
-  // TODO(marja): deprecate AddObjectGroup. Use Isolate::SetObjectGroupId and
-  // HeapProfiler::SetRetainedObjectInfo instead.
-  static void AddObjectGroup(Persistent<Value>* objects,
-                             size_t length,
-                             RetainedObjectInfo* info = NULL);
-  static void AddObjectGroup(Isolate* isolate,
-                             Persistent<Value>* objects,
-                             size_t length,
-                             RetainedObjectInfo* info = NULL);
-
-  /**
-   * Allows the host application to declare implicit references between
-   * the objects: if |parent| is alive, all |children| are alive too.
-   * After each garbage collection, all implicit references
-   * are removed.  It is intended to be used in the before-garbage-collection
-   * callback function.
-   */
-  // TODO(marja): Deprecate AddImplicitReferences. Use
-  // Isolate::SetReferenceFromGroup instead.
-  static void AddImplicitReferences(Persistent<Object> parent,
-                                    Persistent<Value>* children,
-                                    size_t length);
-
   /**
    * Initializes from snapshot if possible. Otherwise, attempts to
    * initialize from scratch.  This function is called implicitly if

src/api.cc

@@ -6376,42 +6376,6 @@ void V8::SetFailedAccessCheckCallbackFunction(
 }
 
 
-void V8::AddObjectGroup(Persistent<Value>* objects,
-                        size_t length,
-                        RetainedObjectInfo* info) {
-  i::Isolate* isolate = i::Isolate::Current();
-  if (IsDeadCheck(isolate, "v8::V8::AddObjectGroup()")) return;
-  STATIC_ASSERT(sizeof(Persistent<Value>) == sizeof(i::Object**));
-  isolate->global_handles()->AddObjectGroup(
-      reinterpret_cast<i::Object***>(objects), length, info);
-}
-
-
-void V8::AddObjectGroup(Isolate* exported_isolate,
-                        Persistent<Value>* objects,
-                        size_t length,
-                        RetainedObjectInfo* info) {
-  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(exported_isolate);
-  ASSERT(isolate == i::Isolate::Current());
-  if (IsDeadCheck(isolate, "v8::V8::AddObjectGroup()")) return;
-  STATIC_ASSERT(sizeof(Persistent<Value>) == sizeof(i::Object**));
-  isolate->global_handles()->AddObjectGroup(
-      reinterpret_cast<i::Object***>(objects), length, info);
-}
-
-
-void V8::AddImplicitReferences(Persistent<Object> parent,
-                               Persistent<Value>* children,
-                               size_t length) {
-  i::Isolate* isolate = i::Isolate::Current();
-  if (IsDeadCheck(isolate, "v8::V8::AddImplicitReferences()")) return;
-  STATIC_ASSERT(sizeof(Persistent<Value>) == sizeof(i::Object**));
-  isolate->global_handles()->AddImplicitReferences(
-      i::Handle<i::HeapObject>::cast(Utils::OpenHandle(*parent)).location(),
-      reinterpret_cast<i::Object***>(children), length);
-}
-
-
 intptr_t Isolate::AdjustAmountOfExternalAllocatedMemory(
     intptr_t change_in_bytes) {
   i::Heap* heap = reinterpret_cast<i::Isolate*>(this)->heap();