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

chrome/browser/ui/views/tabs/tab_strip.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 "chrome/browser/ui/views/tabs/tab_strip.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/stl_util-inl.h"
@@ skipping 292 matching lines @@
 
   // Paint the New Tab button.
   newtab_button_->ProcessPaint(canvas);
 
   // And the dragged tab.
   if (dragging_tab)
     dragging_tab->ProcessPaint(canvas);
 }
 
 // Overridden to support automation. See automation_proxy_uitest.cc.
-views::View* TabStrip::GetViewByID(int view_id) const {
+const views::View* TabStrip::GetViewByID(int view_id) const {
   if (tab_count() > 0) {
     if (view_id == VIEW_ID_TAB_LAST) {
       return GetTabAtTabDataIndex(tab_count() - 1);
     } else if ((view_id >= VIEW_ID_TAB_0) && (view_id < VIEW_ID_TAB_LAST)) {
       int index = view_id - VIEW_ID_TAB_0;
       if (index >= 0 && index < tab_count()) {
         return GetTabAtTabDataIndex(index);
       } else {
         return NULL;
       }
@@ skipping 625 matching lines @@
 int TabStrip::GetAvailableWidthForTabs(Tab* last_tab) const {
   return last_tab->x() + last_tab->width();
 }
 
 bool TabStrip::IsPointInTab(Tab* tab,
                             const gfx::Point& point_in_tabstrip_coords) {
   gfx::Point point_in_tab_coords(point_in_tabstrip_coords);
   View::ConvertPointToView(this, tab, &point_in_tab_coords);
   return tab->HitTest(point_in_tab_coords);
 }