[Web Payments] Refactor the row display code.

ui/views/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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 112 matching lines @@
 // Creation and lifetime -------------------------------------------------------
 
 View::View()
     : owned_by_client_(false),
       id_(0),
       group_(-1),
       parent_(NULL),
 #if DCHECK_IS_ON()
       iterating_(false),
 #endif
+      can_process_events_within_subtree_(true),
       visible_(true),
       enabled_(true),
       notify_enter_exit_on_child_(false),
       registered_for_visible_bounds_notification_(false),
       needs_layout_(true),
       snap_layer_to_pixel_boundary_(false),
       flip_canvas_on_paint_for_rtl_ui_(false),
       paint_to_layer_(false),
       accelerator_focus_manager_(NULL),
       registered_accelerator_count_(0),
@@ skipping 838 matching lines @@
 
 View* View::GetEventHandlerForPoint(const gfx::Point& point) {
   return GetEventHandlerForRect(gfx::Rect(point, gfx::Size(1, 1)));
 }
 
 View* View::GetEventHandlerForRect(const gfx::Rect& rect) {
   return GetEffectiveViewTargeter()->TargetForRect(this, rect);
 }
 
 bool View::CanProcessEventsWithinSubtree() const {
-  return true;
+  return can_process_events_within_subtree_;
 }
 
 View* View::GetTooltipHandlerForPoint(const gfx::Point& point) {
   // TODO(tdanderson): Move this implementation into ViewTargetDelegate.
   if (!HitTestPoint(point) || !CanProcessEventsWithinSubtree())
     return NULL;
 
   // Walk the child Views recursively looking for the View that most
   // tightly encloses the specified point.
   View::Views children = GetChildrenInZOrder();
@@ skipping 1548 matching lines @@
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   gfx::Point widget_location(event.location());
   ConvertPointToWidget(this, &widget_location);
   widget->RunShellDrag(this, data, widget_location, drag_operations, source);
   // WARNING: we may have been deleted.
   return true;
 }
 
 }  // namespace views