Allow constexpr variables of TimeDelta type.

content/browser/download/base_file_unittest.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 "content/browser/download/base_file.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 15 matching lines @@
 namespace content {
 namespace {
 
 const char kTestData1[] = "Let's write some data to the file!\n";
 const char kTestData2[] = "Writing more data.\n";
 const char kTestData3[] = "Final line.";
 const char kTestData4[] = "supercalifragilisticexpialidocious";
 const int kTestDataLength1 = arraysize(kTestData1) - 1;
 const int kTestDataLength2 = arraysize(kTestData2) - 1;
 const int kTestDataLength4 = arraysize(kTestData4) - 1;
-const int kElapsedTimeSeconds = 5;
-const base::TimeDelta kElapsedTimeDelta = base::TimeDelta::FromSeconds(
-    kElapsedTimeSeconds);
 
 // SHA-256 hash of kTestData1 (excluding terminating NUL).
 const uint8_t kHashOfTestData1[] = {
     0x0b, 0x2d, 0x3f, 0x3f, 0x79, 0x43, 0xad, 0x64, 0xb8, 0x60, 0xdf,
     0x94, 0xd0, 0x5c, 0xb5, 0x6a, 0x8a, 0x97, 0xc6, 0xec, 0x57, 0x68,
     0xb5, 0xb7, 0x0b, 0x93, 0x0c, 0x5a, 0xa7, 0xfa, 0x9a, 0xde};
 
 // SHA-256 hash of kTestData1 ++ kTestData2 ++ kTestData3 (excluding terminating
 // NUL).
 const uint8_t kHashOfTestData1To3[] = {
@@ skipping 680 matching lines @@
 
   const char kData[] = "hello";
   const int kDataLength = static_cast<int>(arraysize(kData) - 1);
   ASSERT_EQ(kDataLength, base::WriteFile(full_path, kData, kDataLength));
   // The file that we created here should stick around when the BaseFile is
   // destroyed during TearDown.
   expect_file_survives_ = true;
 }
 
 }  // namespace content