Rewrite scoped_ptr<T>(NULL) to use the default ctor in chrome/.

chrome/browser/chromeos/cros/cros_library.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/chromeos/cros/cros_library.h"
 
 #include "chrome/browser/chromeos/cros/network_library.h"
 
 #define DEFINE_GET_LIBRARY_METHOD(class_prefix, var_prefix)                    \
 class_prefix##Library* CrosLibrary::Get##class_prefix##Library() {             \
   return var_prefix##_lib_.GetDefaultImpl(use_stub_impl_);                     \
 }
 
 #define DEFINE_SET_LIBRARY_METHOD(class_prefix, var_prefix)                    \
 void CrosLibrary::TestApi::Set##class_prefix##Library(                         \
     class_prefix##Library* library, bool own) {                                \
   library_->var_prefix##_lib_.SetImpl(library, own);                           \
 }
 
 namespace chromeos {
 
 static CrosLibrary* g_cros_library = NULL;
 
-CrosLibrary::CrosLibrary(bool use_stub)
-    : use_stub_impl_(use_stub),
-      test_api_(NULL) {
-}
+CrosLibrary::CrosLibrary(bool use_stub) : use_stub_impl_(use_stub) {}
 
 CrosLibrary::~CrosLibrary() {
 }
 
 // static
 void CrosLibrary::Initialize(bool use_stub) {
   CHECK(!g_cros_library) << "CrosLibrary: Multiple calls to Initialize().";
   g_cros_library = new CrosLibrary(use_stub);
   VLOG_IF(1, use_stub) << "CrosLibrary Initialized with Stub Impl.";
 }
@@ skipping 16 matching lines @@
 
 CrosLibrary::TestApi* CrosLibrary::GetTestApi() {
   if (!test_api_.get())
     test_api_.reset(new TestApi(this));
   return test_api_.get();
 }
 
 DEFINE_SET_LIBRARY_METHOD(Network, network);
 
 } // namespace chromeos