Add a new QUIC platform API for text utilities.

net/quic/core/quic_utils_test.cc

Index: net/quic/core/quic_utils_test.cc
diff --git a/net/quic/core/quic_utils_test.cc b/net/quic/core/quic_utils_test.cc
index a6d794e61bfd52b0e9345c9c6fdb1a224685ca79..6d0be398b07ec2ed2f57b7edd62ea2ab0b7b356d 100644
--- a/net/quic/core/quic_utils_test.cc
+++ b/net/quic/core/quic_utils_test.cc
@@ -99,27 +99,6 @@ TEST(QuicUtilsHashTest, ReferenceTest) {
                 reinterpret_cast<const char*>(data.data()), data.size())));
 }
 
-TEST(QuicUtilsTest, HexDump) {
-  // Verify output of the HexDump method is as expected.
-  char packet[] = {
-      0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x2c, 0x20, 0x51, 0x55, 0x49, 0x43, 0x21,
-      0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6e, 0x67,
-      0x20, 0x73, 0x68, 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x6c,
-      0x6f, 0x6e, 0x67, 0x20, 0x65, 0x6e, 0x6f, 0x75, 0x67, 0x68, 0x20, 0x74,
-      0x6f, 0x20, 0x73, 0x70, 0x61, 0x6e, 0x20, 0x6d, 0x75, 0x6c, 0x74, 0x69,
-      0x70, 0x6c, 0x65, 0x20, 0x6c, 0x69, 0x6e, 0x65, 0x73, 0x20, 0x6f, 0x66,
-      0x20, 0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x2e, 0x01, 0x02, 0x03, 0x00,
-  };
-  EXPECT_EQ(
-      QuicUtils::HexDump(packet),
-      "0x0000:  4865 6c6c 6f2c 2051 5549 4321 2054 6869  Hello,.QUIC!.Thi\n"
-      "0x0010:  7320 7374 7269 6e67 2073 686f 756c 6420  s.string.should.\n"
-      "0x0020:  6265 206c 6f6e 6720 656e 6f75 6768 2074  be.long.enough.t\n"
-      "0x0030:  6f20 7370 616e 206d 756c 7469 706c 6520  o.span.multiple.\n"
-      "0x0040:  6c69 6e65 7320 6f66 206f 7574 7075 742e  lines.of.output.\n"
-      "0x0050:  0102 03                                  ...\n");
-}
-
 }  // namespace
 }  // namespace test
 }  // namespace net