Merge 23332 - Take 2 at fixing anchor links opening in background tabs on lin...

chrome/browser/tab_contents/tab_contents_view_gtk.cc

 // Copyright (c) 2009 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 562 matching lines @@
 
 void TabContentsViewGtk::OnTabCrashed() {
   if (!sad_tab_.get()) {
     sad_tab_.reset(new SadTabGtk);
     InsertIntoContentArea(sad_tab_->widget());
     gtk_widget_show(sad_tab_->widget());
   }
 }
 
 void TabContentsViewGtk::SizeContents(const gfx::Size& size) {
-  // This function is a hack and should go away. In any case we don't manually
-  // control the size of the contents on linux, so do nothing.
+  // We don't normally need to manually set the size of of widgets in GTK+,
+  // but this is used when creating background tabs.  When a tab is created in
+  // the background, we need to set the size so WebKit can properly compute
+  // the scrolling offset if a #ref is provided.
+  if (tab_contents()->render_widget_host_view()) {
+    GtkWidget* widget =
+        tab_contents()->render_widget_host_view()->GetNativeView();
+    widget->allocation.width = size.width();
+    widget->allocation.height = size.height();
+  }
 }
 
 void TabContentsViewGtk::Focus() {
   if (tab_contents()->showing_interstitial_page()) {
     tab_contents()->interstitial_page()->Focus();
   } else {
     GtkWidget* widget = GetContentNativeView();
     if (widget)
       gtk_widget_grab_focus(widget);
   }
@@ skipping 281 matching lines @@
     gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                      widget, "x", &value);
 
     int child_y = std::max(half_view_height - (requisition.height / 2), 0);
     g_value_set_int(&value, child_y);
     gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                      widget, "y", &value);
     g_value_unset(&value);
   }
 }