Use a direct include of strings headers in ui/, part 3.

ui/views/examples/scroll_view_example.cc

 // Copyright (c) 2011 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/examples/scroll_view_example.h"
 
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/radio_button.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/view.h"
 
 namespace views {
 namespace examples {
 
 // ScrollView's content, which draws gradient color on background.
@@ skipping 87 matching lines @@
     scrollable_->SetColor(SK_ColorYELLOW, SK_ColorGREEN);
   } else if (sender == scroll_to_) {
     scroll_view_->contents()->ScrollRectToVisible(
         gfx::Rect(20, 500, 1000, 500));
   }
   scroll_view_->Layout();
 }
 
 }  // namespace examples
 }  // namespace views