Prefix string16 with base:: in ui/.

ui/views/controls/tree/tree_view.cc

 // 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.
 
 #include "ui/views/controls/tree/tree_view.h"
 
 #include <algorithm>
 
 #include "base/i18n/rtl.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 464 matching lines @@
   int old_width = node->text_width();
   UpdateNodeTextWidth(node);
   if (old_width != node->text_width() &&
       ((node == &root_ && root_shown_) ||
        (node != &root_ && IsExpanded(node->parent()->model_node())))) {
     DrawnNodesChanged();
   }
 }
 
 void TreeView::ContentsChanged(Textfield* sender,
-                               const string16& new_contents) {
+                               const base::string16& new_contents) {
 }
 
 bool TreeView::HandleKeyEvent(Textfield* sender,
                               const ui::KeyEvent& key_event) {
   switch (key_event.key_code()) {
     case ui::VKEY_RETURN:
       CommitEdit();
       return true;
 
     case ui::VKEY_ESCAPE:
@@ skipping 22 matching lines @@
 
 int TreeView::GetSelectedRow() {
   ui::TreeModelNode* model_node = GetSelectedNode();
   return model_node ? GetRowForNode(model_node) : -1;
 }
 
 void TreeView::SetSelectedRow(int row) {
   SetSelectedNode(GetNodeForRow(row));
 }
 
-string16 TreeView::GetTextForRow(int row) {
+base::string16 TreeView::GetTextForRow(int row) {
   return GetNodeForRow(row)->GetTitle();
 }
 
 gfx::Point TreeView::GetKeyboardContextMenuLocation() {
   int y = height() / 2;
   if (selected_node_) {
     gfx::Rect node_bounds(GetBoundsForNode(selected_node_));
     gfx::Rect vis_bounds(GetVisibleBounds());
     if (node_bounds.y() >= vis_bounds.y() &&
         node_bounds.y() < vis_bounds.bottom()) {
@@ skipping 494 matching lines @@
   if (!is_expanded_)
     return max_width;
   for (int i = 0; i < child_count(); ++i) {
     max_width = std::max(max_width,
                          GetChild(i)->GetMaxWidth(indent, depth + 1));
   }
   return max_width;
 }
 
 }  // namespace views