linux: use TabContents to launch url for link in crash page...

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 242 matching lines @@
 
 void TabContentsViewGtk::SetPageTitle(const std::wstring& 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 && content_view->window)
     gdk_window_set_title(content_view->window, WideToUTF8(title).c_str());
 }
 
 void TabContentsViewGtk::OnTabCrashed() {
-  if (!sad_tab_.get()) {
-    sad_tab_.reset(new SadTabGtk);
+  if (tab_contents() != NULL && !sad_tab_.get()) {
+    sad_tab_.reset(new SadTabGtk(tab_contents()));
     InsertIntoContentArea(sad_tab_->widget());
     gtk_widget_show(sad_tab_->widget());
   }
 }
 
 void TabContentsViewGtk::SizeContents(const gfx::Size& size) {
   // We don't need to manually set the size of of widgets in GTK+, but we do
   // need to pass the sizing information on to the RWHV which will pass the
   // sizing information on to the renderer.
   requested_size_ = size;
@@ skipping 202 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);
   }
 }