Rework tree APIs to reflect Google style and more const-correctness....

views/layout/grid_layout.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 "views/layout/grid_layout.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
@@ skipping 942 matching lines @@
   if (!calculated_master_columns_) {
     calculated_master_columns_ = true;
     for (std::vector<ColumnSet*>::iterator i = column_sets_.begin();
          i != column_sets_.end(); ++i) {
       (*i)->CalculateMasterColumns();
     }
   }
 }
 
 void GridLayout::AddViewState(ViewState* view_state) {
-  DCHECK(view_state->view && (view_state->view->GetParent() == NULL ||
-                              view_state->view->GetParent() == host_));
-  if (!view_state->view->GetParent()) {
+  DCHECK(view_state->view && (view_state->view->parent() == NULL ||
+                              view_state->view->parent() == host_));
+  if (!view_state->view->parent()) {
     adding_view_ = true;
     host_->AddChildView(view_state->view);
     adding_view_ = false;
   }
   remaining_row_span_ = std::max(remaining_row_span_, view_state->row_span);
   next_column_ += view_state->col_span;
   current_row_col_set_->AddViewState(view_state);
   // view_states are ordered by row_span (in ascending order).
   std::vector<ViewState*>::iterator i = lower_bound(view_states_.begin(),
                                                     view_states_.end(),
@@ skipping 85 matching lines @@
 
 ColumnSet* GridLayout::GetLastValidColumnSet() {
   for (int i = current_row_ - 1; i >= 0; --i) {
     if (rows_[i]->column_set())
       return rows_[i]->column_set();
   }
   return NULL;
 }
 
 }  // namespace views