Update comments in the global handles interface.

src/global-handles.cc

Index: src/global-handles.cc
diff --git a/src/global-handles.cc b/src/global-handles.cc
index c96dd3cd8f32985c9bd42a7f81dce969a06a9729..87066faeaf64950a8349da385e36cd206b23bea6 100644
--- a/src/global-handles.cc
+++ b/src/global-handles.cc
@@ -467,17 +467,6 @@ void GlobalHandles::IterateWeakRoots(ObjectVisitor* v) {
 }
 
 
-void GlobalHandles::IterateNewSpaceWeakIndependentRoots(ObjectVisitor* v) {
-  for (int i = 0; i < new_space_nodes_.length(); ++i) {
-    Node* node = new_space_nodes_[i];
-    ASSERT(node->is_in_new_space_list());
-    if (node->is_independent() && node->IsWeakRetainer()) {
-      v->VisitPointer(node->location());
-    }
-  }
-}
-
-
 void GlobalHandles::IterateWeakRoots(WeakReferenceGuest f,
                                      WeakReferenceCallback callback) {
   for (NodeIterator it(this); !it.done(); it.Advance()) {
@@ -497,6 +486,17 @@ void GlobalHandles::IdentifyWeakHandles(WeakSlotCallback f) {
 }
 
 
+void GlobalHandles::IterateNewSpaceStrongAndDependentRoots(ObjectVisitor* v) {
+  for (int i = 0; i < new_space_nodes_.length(); ++i) {
+    Node* node = new_space_nodes_[i];
+    if (node->IsStrongRetainer() ||
+        (node->IsWeakRetainer() && !node->is_independent())) {
+      v->VisitPointer(node->location());
+    }
+  }
+}
+
+
 void GlobalHandles::IdentifyNewSpaceWeakIndependentHandles(
     WeakSlotCallbackWithHeap f) {
   for (int i = 0; i < new_space_nodes_.length(); ++i) {
@@ -510,6 +510,17 @@ void GlobalHandles::IdentifyNewSpaceWeakIndependentHandles(
 }
 
 
+void GlobalHandles::IterateNewSpaceWeakIndependentRoots(ObjectVisitor* v) {
+  for (int i = 0; i < new_space_nodes_.length(); ++i) {
+    Node* node = new_space_nodes_[i];
+    ASSERT(node->is_in_new_space_list());
+    if (node->is_independent() && node->IsWeakRetainer()) {
+      v->VisitPointer(node->location());
+    }
+  }
+}
+
+
 bool GlobalHandles::PostGarbageCollectionProcessing(
     GarbageCollector collector) {
   // Process weak global handle callbacks. This must be done after the
@@ -586,17 +597,6 @@ void GlobalHandles::IterateAllRoots(ObjectVisitor* v) {
 }
 
 
-void GlobalHandles::IterateNewSpaceStrongAndDependentRoots(ObjectVisitor* v) {
-  for (int i = 0; i < new_space_nodes_.length(); ++i) {
-    Node* node = new_space_nodes_[i];
-    if (node->IsStrongRetainer() ||
-        (node->IsWeakRetainer() && !node->is_independent())) {
-      v->VisitPointer(node->location());
-    }
-  }
-}
-
-
 void GlobalHandles::IterateAllRootsWithClassIds(ObjectVisitor* v) {
   for (NodeIterator it(this); !it.done(); it.Advance()) {
     if (it.node()->has_wrapper_class_id() && it.node()->IsRetainer()) {