Add a gyp flag to enable dcheck by default in release without

ui/base/text/bytes_formatting_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/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/text/bytes_formatting.h"
 
 namespace ui {
 
 TEST(BytesFormattingTest, GetByteDisplayUnits) {
   static const struct {
     int64 bytes;
     DataUnits expected;
   } cases[] = {
     {0, DATA_UNITS_BYTE},
     {512, DATA_UNITS_BYTE},
     {10*1024, DATA_UNITS_KIBIBYTE},
     {10*1024*1024, DATA_UNITS_MEBIBYTE},
     {10LL*1024*1024*1024, DATA_UNITS_GIBIBYTE},
     {10LL*1024*1024*1024*1024, DATA_UNITS_TEBIBYTE},
     {~(1LL<<63), DATA_UNITS_PEBIBYTE},
-#ifdef NDEBUG
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
     {-1, DATA_UNITS_BYTE},
 #endif
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i)
     EXPECT_EQ(cases[i].expected, GetByteDisplayUnits(cases[i].bytes));
 }
 
 TEST(BytesFormattingTest, FormatBytes) {
   static const struct {
@@ skipping 22 matching lines @@
     {~(1LL<<63), DATA_UNITS_GIBIBYTE, "8,589,934,592", "8,589,934,592 GB"},
     {~(1LL<<63), DATA_UNITS_PEBIBYTE, "8,192", "8,192 PB"},
 
     {99*1024 + 103, DATA_UNITS_KIBIBYTE, "99.1", "99.1 kB"},
     {1024*1024 + 103, DATA_UNITS_KIBIBYTE, "1,024", "1,024 kB"},
     {1024*1024 + 205 * 1024, DATA_UNITS_MEBIBYTE, "1.2", "1.2 MB"},
     {1024*1024*1024 + (927 * 1024*1024), DATA_UNITS_GIBIBYTE,
      "1.9", "1.9 GB"},
     {10LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "10.0", "10.0 GB"},
     {100LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "100", "100 GB"},
-#ifdef NDEBUG
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
     {-1, DATA_UNITS_BYTE, "", ""},
 #endif
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
     EXPECT_EQ(ASCIIToUTF16(cases[i].expected),
               FormatBytesWithUnits(cases[i].bytes, cases[i].units, false));
     EXPECT_EQ(ASCIIToUTF16(cases[i].expected_with_units),
               FormatBytesWithUnits(cases[i].bytes, cases[i].units, true));
   }
 }
 
 }  // namespace ui