Don't leave aborted URLs in the omnibox unless we're on a new tab.

content/browser/web_contents/web_contents_impl.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/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 2327 matching lines @@
     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                       DidOpenRequestedURL(new_contents,
                                           params.url,
                                           params.referrer,
                                           params.disposition,
                                           params.transition,
                                           source_render_frame_id));
   }
 }
 
+bool WebContentsImpl::ShouldPreserveAbortedURLs() {
+  return delegate_->ShouldPreserveAbortedURLs(this);
+}
+
 void WebContentsImpl::DidRedirectProvisionalLoad(
     RenderFrameHostImpl* render_frame_host,
     const GURL& validated_target_url) {
   // Notify observers about the provisional change in the main frame URL.
   FOR_EACH_OBSERVER(
       WebContentsObserver,
       observers_,
       ProvisionalChangeToMainFrameUrl(validated_target_url,
                                       render_frame_host));
 }
@@ skipping 1479 matching lines @@
 
 void WebContentsImpl::OnPreferredSizeChanged(const gfx::Size& old_size) {
   if (!delegate_)
     return;
   const gfx::Size new_size = GetPreferredSize();
   if (new_size != old_size)
     delegate_->UpdatePreferredSize(this, new_size);
 }
 
 }  // namespace content