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

chrome/browser/ui/views/tabs/dragged_tab_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/tabs/dragged_tab_view.h"
 
 #include "chrome/browser/ui/views/tabs/native_view_photobooth.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "ui/gfx/canvas_skia.h"
 #include "views/widget/widget.h"
@@ skipping 44 matching lines @@
 #else
   container_.reset(new views::WidgetGtk(views::WidgetGtk::TYPE_POPUP));
   container_->MakeTransparent();
   container_->set_delete_on_destroy(false);
   container_->Init(NULL, gfx::Rect(0, 0, 0, 0));
   container_->SetContentsView(this);
 #endif
 }
 
 DraggedTabView::~DraggedTabView() {
-  GetParent()->RemoveChildView(this);
+  parent()->RemoveChildView(this);
   container_->CloseNow();
 }
 
 void DraggedTabView::MoveTo(const gfx::Point& screen_point) {
   int x;
   if (base::i18n::IsRTL()) {
     // On RTL locales, a dragged tab (when it is not attached to a tab strip)
     // is rendered using a right-to-left orientation so we should calculate the
     // window position differently.
     gfx::Size ps = GetPreferredSize();
@@ skipping 136 matching lines @@
 #else
   gfx::Rect bounds;
   container_->GetBounds(&bounds, true);
   container_->SetBounds(gfx::Rect(bounds.x(), bounds.y(), w, h));
 #endif
 }
 
 int DraggedTabView::ScaleValue(int value) {
   return static_cast<int>(value * kScalingFactor);
 }