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

chrome/browser/extensions/api/automation_internal/automation_event_router.cc

 // Copyright 2015 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/extensions/api/automation_internal/automation_event_router.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 85 matching lines @@
       events::AUTOMATION_INTERNAL_ON_ACCESSIBILITY_TREE_DESTROYED,
       api::automation_internal::OnAccessibilityTreeDestroyed::kEventName,
       std::move(args)));
   event->restrict_to_browser_context = browser_context;
   EventRouter::Get(browser_context)->BroadcastEvent(std::move(event));
 }
 
 AutomationEventRouter::AutomationListener::AutomationListener() {
 }
 
+AutomationEventRouter::AutomationListener::AutomationListener(
+    const AutomationListener& other) = default;
+
 AutomationEventRouter::AutomationListener::~AutomationListener() {
 }
 
 void AutomationEventRouter::Register(
     const ExtensionId& extension_id,
     int listener_process_id,
     int listener_routing_id,
     int ax_tree_id,
     bool desktop) {
   auto iter = std::find_if(
@@ skipping 67 matching lines @@
     // only mark one as active.
     listener.is_active_profile = (extension_id_count == 1 ||
                                   rph->GetBrowserContext() == active_profile_);
 #else
     listener.is_active_profile = true;
 #endif
   }
 }
 
 }  // namespace extensions