[not for review - epic CL] Adding Elastic+Momentum+Layered scrolling to views::ScrollView

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 <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 299 matching lines @@
 int TableView::ViewToModel(int view_index) const {
   if (!is_sorted())
     return view_index;
   DCHECK_GE(view_index, 0) << " negative view_index " << view_index;
   DCHECK_LT(view_index, RowCount()) << " out of bounds view_index " <<
       view_index;
   return view_to_model_[view_index];
 }
 
 void TableView::Layout() {
-  // parent()->parent() is the scrollview. When its width changes we force
-  // recalculating column sizes.
-  View* scroll_view = parent() ? parent()->parent() : NULL;
+  // When the scroll view width changes, recalculate column sizes.
+  ScrollView* scroll_view = EnclosingScrollView();
   if (scroll_view) {
     const int scroll_view_width = scroll_view->GetContentsBounds().width();
     if (scroll_view_width != last_parent_width_) {
       last_parent_width_ = scroll_view_width;
       if (!in_set_visible_column_width_) {
-        // Layout to the parent (the Viewport), which differs from
+        // Layout to the visible width (the Viewport), which differs from
         // |scroll_view_width| when scrollbars are present.
-        layout_width_ = parent()->width();
+        layout_width_ = scroll_view->GetVisibleRect().width();
         UpdateVisibleColumnSizes();
       }
     }
   }
   // We have to override Layout like this since we're contained in a ScrollView.
   gfx::Size pref = GetPreferredSize();
   int width = pref.width();
   int height = pref.height();
   if (parent()) {
     width = std::max(parent()->width(), width);
@@ skipping 616 matching lines @@
   if (tooltip)
     *tooltip = text;
   if (tooltip_origin) {
     tooltip_origin->SetPoint(cell_bounds.x(),
                              cell_bounds.y() + kTextVerticalPadding);
   }
   return true;
 }
 
 }  // namespace views