Revert of Make IP Address related functions return the empty string when used on an invalid address.

net/base/ip_address_number_unittest.cc

Index: net/base/ip_address_number_unittest.cc
diff --git a/net/base/ip_address_number_unittest.cc b/net/base/ip_address_number_unittest.cc
index 93e6d90793762f9ab55c947d795b4f338faa1468..0b37bfac39ffd232911bf00e62c8d2c3ac35336d 100644
--- a/net/base/ip_address_number_unittest.cc
+++ b/net/base/ip_address_number_unittest.cc
@@ -34,10 +34,6 @@
 
   uint8_t addr3[16] = {0xFE, 0xDC, 0xBA, 0x98};
   EXPECT_EQ("fedc:ba98::", IPAddressToString(addr3, sizeof(addr3)));
-
-  // IPAddressToString() shouldn't crash on invalid addresses.
-  uint8_t addr4[2];
-  EXPECT_EQ("", IPAddressToString(addr4, sizeof(addr4)));
 }
 
 TEST(IpAddressNumberTest, IPAddressToStringWithPort) {
@@ -51,10 +47,6 @@
   uint8_t addr3[16] = {0xFE, 0xDC, 0xBA, 0x98};
   EXPECT_EQ("[fedc:ba98::]:8080",
             IPAddressToStringWithPort(addr3, sizeof(addr3), 8080));
-
-  // IPAddressToStringWithPort() shouldn't crash on invalid addresses.
-  uint8_t addr4[2];
-  EXPECT_EQ("", IPAddressToStringWithPort(addr4, sizeof(addr4), 8080));
 }
 
 // Test that invalid IP literals fail to parse.