Remove TestWebContents override that doesn't override anything.

content/test/test_web_contents.cc

 // Copyright (c) 2012 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 "content/test/test_web_contents.h"
 
 #include <utility>
 
 #include "content/browser/browser_url_handler_impl.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/common/frame_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "content/test/test_render_view_host.h"
 
 namespace content {
 
 TestWebContents::TestWebContents(BrowserContext* browser_context)
     : WebContentsImpl(browser_context, NULL),
-      transition_cross_site(false),
       delegate_view_override_(NULL),
       expect_set_history_length_and_prune_(false),
       expect_set_history_length_and_prune_site_instance_(NULL),
       expect_set_history_length_and_prune_history_length_(0),
       expect_set_history_length_and_prune_min_page_id_(-1) {
 }
 
 TestWebContents* TestWebContents::Create(BrowserContext* browser_context,
                                          SiteInstance* instance) {
   TestWebContents* test_web_contents = new TestWebContents(browser_context);
@@ skipping 208 matching lines @@
 }
 
 void TestWebContents::ShowCreatedWidget(int route_id,
                                         const gfx::Rect& initial_pos) {
 }
 
 void TestWebContents::ShowCreatedFullscreenWidget(int route_id) {
 }
 
 }  // namespace content