Revert of Move JoinString to the base namespace

ui/views/controls/table/table_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/table/table_view.h"
 
 #include <map>
 
 #include "base/auto_reset.h"
 #include "base/i18n/rtl.h"
@@ skipping 430 matching lines @@
 
     std::vector<base::string16> name_parts;
     for (const VisibleColumn& visible_column : visible_columns_) {
       base::string16 value = model_->GetText(
           selection_model_.active(), visible_column.column.id);
       if (!value.empty()) {
         name_parts.push_back(visible_column.column.title);
         name_parts.push_back(value);
       }
     }
-    state->name = base::JoinString(name_parts, base::ASCIIToUTF16(", "));
+    state->name = JoinString(name_parts, base::ASCIIToUTF16(", "));
   }
 }
 
 void TableView::OnModelChanged() {
   selection_model_.Clear();
   NumRowsChanged();
 }
 
 void TableView::OnItemsChanged(int start, int length) {
   SortItemsAndUpdateMapping();
@@ skipping 482 matching lines @@
   if (tooltip)
     *tooltip = text;
   if (tooltip_origin) {
     tooltip_origin->SetPoint(cell_bounds.x(),
                              cell_bounds.y() + kTextVerticalPadding);
   }
   return true;
 }
 
 }  // namespace views