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

chrome/browser/extensions/api/messaging/incognito_connectability.cc

 // Copyright 2013 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/messaging/incognito_connectability.h"
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 200 matching lines @@
     case ScopedAlertTracker::ALWAYS_DENY:
       OnInteractiveResponse(extension->id(), origin, infobar_manager,
                             g_alert_mode);
       break;
   }
 }
 
 IncognitoConnectability::TabContext::TabContext() : infobar(nullptr) {
 }
 
+IncognitoConnectability::TabContext::TabContext(const TabContext& other) =
+    default;
+
 IncognitoConnectability::TabContext::~TabContext() {
 }
 
 void IncognitoConnectability::OnInteractiveResponse(
     const std::string& extension_id,
     const GURL& origin,
     InfoBarManager* infobar_manager,
     ScopedAlertTracker::Mode response) {
   switch (response) {
     case ScopedAlertTracker::ALWAYS_ALLOW:
@@ skipping 59 matching lines @@
     BrowserContextKeyedAPIFactory<IncognitoConnectability> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 // static
 BrowserContextKeyedAPIFactory<IncognitoConnectability>*
 IncognitoConnectability::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 }  // namespace extensions