chrome: Add out-of-line copy ctors for complex classes.

chrome/browser/prerender/prerender_link_manager.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 "chrome/browser/prerender/prerender_link_manager.h"
 
 #include <functional>
 #include <limits>
 #include <set>
 #include <string>
@@ skipping 257 matching lines @@
       rel_types(rel_types),
       referrer(referrer),
       size(size),
       render_view_route_id(render_view_route_id),
       creation_time(creation_time),
       deferred_launcher(deferred_launcher),
       handle(NULL),
       is_match_complete_replacement(false),
       has_been_abandoned(false) {}
 
+PrerenderLinkManager::LinkPrerender::LinkPrerender(const LinkPrerender& other) =
+    default;
+
 PrerenderLinkManager::LinkPrerender::~LinkPrerender() {
   DCHECK_EQ(static_cast<PrerenderHandle*>(NULL), handle)
       << "The PrerenderHandle should be destroyed before its Prerender.";
 }
 
 bool PrerenderLinkManager::IsEmpty() const {
   return prerenders_.empty();
 }
 
 size_t PrerenderLinkManager::CountRunningPrerenders() const {
@@ skipping 249 matching lines @@
   DCHECK(!prerender->is_match_complete_replacement);
   prerender->is_match_complete_replacement = true;
   Send(prerender->launcher_child_id,
        new PrerenderMsg_OnPrerenderStop(prerender->prerender_id));
   // Do not call RemovePrerender here. The replacement needs to stay connected
   // to the HTMLLinkElement in the renderer so it notices renderer-triggered
   // cancelations.
 }
 
 }  // namespace prerender