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

chrome/browser/extensions/pending_extension_info.cc

 // Copyright 2014 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/pending_extension_info.h"
 
 #include "base/logging.h"
 
 namespace extensions {
 
@@ skipping 23 matching lines @@
 PendingExtensionInfo::PendingExtensionInfo()
     : update_url_(),
       should_allow_install_(NULL),
       is_from_sync_(true),
       install_source_(Manifest::INVALID_LOCATION),
       creation_flags_(0),
       mark_acknowledged_(false),
       remote_install_(false) {
 }
 
+PendingExtensionInfo::PendingExtensionInfo(const PendingExtensionInfo& other) =
+    default;
+
 PendingExtensionInfo::~PendingExtensionInfo() {}
 
 bool PendingExtensionInfo::operator==(const PendingExtensionInfo& rhs) const {
   return id_ == rhs.id_;
 }
 
 int PendingExtensionInfo::CompareTo(const PendingExtensionInfo& other) const {
   DCHECK_EQ(id_, other.id_);
   if (version_.IsValid() && other.version_.IsValid()) {
     int comparison = version_.CompareTo(other.version_);
@@ skipping 13 matching lines @@
   // Different install sources; |this| has higher precedence if
   // |install_source_| is the higher priority source.
   Manifest::Location higher_priority_source =
       Manifest::GetHigherPriorityLocation(
           install_source_, other.install_source_);
 
   return higher_priority_source == install_source_ ? 1 : -1;
 }
 
 }  // namespace extensions