GTK: More removal of raw GtkWidget->allocation access.

chrome/browser/tab_contents/tab_contents_view_gtk.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/tab_contents/tab_contents_view_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
@@ skipping 144 matching lines @@
 void TabContentsViewGtk::GetContainerBounds(gfx::Rect* out) const {
   // This is used for positioning the download shelf arrow animation,
   // as well as sizing some other widgets in Windows.  In GTK the size is
   // managed for us, so it appears to be only used for the download shelf
   // animation.
   int x = 0;
   int y = 0;
   GdkWindow* expanded_window = gtk_widget_get_window(expanded_.get());
   if (expanded_window)
     gdk_window_get_origin(expanded_window, &x, &y);
-  out->SetRect(x + expanded_->allocation.x, y + expanded_->allocation.y,
+
+  GtkAllocation allocation;
+  gtk_widget_get_allocation(expanded_.get(), &allocation);
+  out->SetRect(x + allocation.x, y + allocation.y,
                requested_size_.width(), requested_size_.height());
 }
 
 void TabContentsViewGtk::SetPageTitle(const string16& title) {
   // Set the window name to include the page title so it's easier to spot
   // when debugging (e.g. via xwininfo -tree).
   gfx::NativeView content_view = GetContentNativeView();
   if (content_view) {
     GdkWindow* content_window = gtk_widget_get_window(content_view);
     if (content_window) {
@@ skipping 235 matching lines @@
   requested_size_ = size;
 
   // We manually tell our RWHV to resize the renderer content.  This avoids
   // spurious resizes from GTK+.
   RenderWidgetHostView* rwhv = tab_contents_->GetRenderWidgetHostView();
   if (rwhv)
     rwhv->SetSize(size);
   if (tab_contents_->interstitial_page())
     tab_contents_->interstitial_page()->SetSize(size);
 }