base: Make ScopedVector::clear() destroy elements.

ui/base/models/tree_node_model.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_BASE_MODELS_TREE_NODE_MODEL_H_
 #define UI_BASE_MODELS_TREE_NODE_MODEL_H_
 
 #include <algorithm>
 #include <vector>
 
@@ skipping 80 matching lines @@
     DCHECK(i != children_.end());
     node->parent_ = NULL;
     children_.weak_erase(i);
     return node;
   }
 
   // Removes all the children from this node. This does NOT delete the nodes.
   void RemoveAll() {
     for (size_t i = 0; i < children_.size(); ++i)
       children_[i]->parent_ = NULL;
-    children_.clear();
+    children_.weak_clear();
   }
 
   // Returns the parent node, or NULL if this is the root node.
   const NodeType* parent() const { return parent_; }
   NodeType* parent() { return parent_; }
 
   // Returns true if this is the root node.
   bool is_root() const { return parent_ == NULL; }
 
   // Returns the number of children.
@@ skipping 175 matching lines @@
 
   // The root.
   scoped_ptr<NodeType> root_;
 
   DISALLOW_COPY_AND_ASSIGN(TreeNodeModel);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_MODELS_TREE_NODE_MODEL_H_