Fix a bunch of IWYU violators that don't include scoped_ptr.h

chrome/browser/importer/firefox_profile_lock_unittest.cc

 // Copyright (c) 2011 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 "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/importer/firefox_profile_lock.h"
 #include "chrome/common/chrome_paths.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class FirefoxProfileLockTest : public testing::Test {
  protected:
   void SetUp() override { ASSERT_TRUE(temp_dir_.CreateUniqueTempDir()); }
 
@@ skipping 82 matching lines @@
 
   lock1->Unlock();
   EXPECT_FALSE(lock1->HasAcquired());
 
   lock2->Lock();
   EXPECT_TRUE(lock2->HasAcquired());
   lock2->Unlock();
   EXPECT_FALSE(lock2->HasAcquired());
 }
 #endif