Convert some more view methods to the ui/views style.

views/controls/scroll_view.cc

 // Copyright (c) 2010 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 "views/controls/scroll_view.h"
 
 #include "base/logging.h"
 #include "views/controls/scrollbar/native_scroll_bar.h"
 #include "views/widget/root_view.h"
 
 namespace views {
 
 const char* const ScrollView::kViewClassName = "views/ScrollView";
 
 // Viewport contains the contents View of the ScrollView.
 class Viewport : public View {
  public:
   Viewport() {}
   virtual ~Viewport() {}
 
   virtual void ScrollRectToVisible(const gfx::Rect& rect) {
     if (!has_children() || !parent())
       return;
 
-    View* contents = GetChildViewAt(0);
+    View* contents = child_at(0);
     gfx::Rect scroll_rect(rect);
     scroll_rect.Offset(-contents->x(), -contents->y());
     static_cast<ScrollView*>(parent())->ScrollContentsRegionToBeVisible(
         scroll_rect);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Viewport);
 };
 
@@ skipping 452 matching lines @@
 
 VariableRowHeightScrollHelper::RowInfo
     FixedRowHeightScrollHelper::GetRowInfo(int y) {
   if (y < top_margin_)
     return RowInfo(0, top_margin_);
   return RowInfo((y - top_margin_) / row_height_ * row_height_ + top_margin_,
                  row_height_);
 }
 
 }  // namespace views