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

content/browser/web_contents/web_contents_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 472 matching lines @@
   virtual void NotifyChangedNavigationState(
       InvalidateTypes changed_flags) OVERRIDE;
   virtual void AboutToNavigateRenderFrame(
       RenderFrameHostImpl* render_frame_host) OVERRIDE;
   virtual void DidStartNavigationToPendingEntry(
       RenderFrameHostImpl* render_frame_host,
       const GURL& url,
       NavigationController::ReloadType reload_type) OVERRIDE;
   virtual void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
                               const OpenURLParams& params) OVERRIDE;
+  virtual bool ShouldPreserveAbortedURLs() OVERRIDE;
 
   // RenderWidgetHostDelegate --------------------------------------------------
 
   virtual void RenderWidgetDeleted(
       RenderWidgetHostImpl* render_widget_host) OVERRIDE;
   virtual bool PreHandleKeyboardEvent(
       const NativeWebKeyboardEvent& event,
       bool* is_keyboard_shortcut) OVERRIDE;
   virtual void HandleKeyboardEvent(
       const NativeWebKeyboardEvent& event) OVERRIDE;
@@ skipping 589 matching lines @@
 
   // Whether the last JavaScript dialog shown was suppressed. Used for testing.
   bool last_dialog_suppressed_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_