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

chrome/browser/ui/views/frame/opaque_browser_frame_view.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/frame/opaque_browser_frame_view.h"
 
 #include "base/compiler_specific.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/themes/browser_theme_provider.h"
@@ skipping 377 matching lines @@
   tabstrip_bounds.set_origin(tabstrip_origin);
   if ((!vertical_tabs && l.y() > tabstrip_bounds.bottom()) ||
       (vertical_tabs && l.x() > tabstrip_bounds.right())) {
     return false;
   }
 
   // We convert from our parent's coordinates since we assume we fill its bounds
   // completely. We need to do this since we're not a parent of the tabstrip,
   // meaning ConvertPointToView would otherwise return something bogus.
   gfx::Point browser_view_point(l);
-  View::ConvertPointToView(GetParent(), browser_view_, &browser_view_point);
+  View::ConvertPointToView(parent(), browser_view_, &browser_view_point);
   return browser_view_->IsPositionInWindowCaption(browser_view_point);
 }
 
 AccessibilityTypes::Role OpaqueBrowserFrameView::GetAccessibleRole() {
   return AccessibilityTypes::ROLE_TITLEBAR;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // OpaqueBrowserFrameView, views::ButtonListener implementation:
 
@@ skipping 651 matching lines @@
 
 gfx::Rect OpaqueBrowserFrameView::CalculateClientAreaBounds(int width,
                                                             int height) const {
   int top_height = NonClientTopBorderHeight(false, false);
   int border_thickness = NonClientBorderThickness();
   return gfx::Rect(border_thickness, top_height,
                    std::max(0, width - (2 * border_thickness)),
                    std::max(0, height - GetReservedHeight() -
                        top_height - border_thickness));
 }