Update from https://crrev.com/312398

net/base/mime_util_unittest.cc

Index: net/base/mime_util_unittest.cc
diff --git a/net/base/mime_util_unittest.cc b/net/base/mime_util_unittest.cc
index 5c31137897892cc5fd18c29f1932840138ece0cc..a3d9516ee07731342b6c99eec06afe58d264e1fe 100644
--- a/net/base/mime_util_unittest.cc
+++ b/net/base/mime_util_unittest.cc
@@ -363,23 +363,6 @@ TEST(MimeUtilTest, TestIsValidTopLevelMimeType) {
   EXPECT_FALSE(IsValidTopLevelMimeType("x-"));
 }
 
-TEST(MimeUtilTest, TestToIANAMediaType) {
-  EXPECT_EQ("", GetIANAMediaType("texting/driving"));
-  EXPECT_EQ("", GetIANAMediaType("ham/sandwich"));
-  EXPECT_EQ("", GetIANAMediaType(std::string()));
-  EXPECT_EQ("", GetIANAMediaType("/application/hamsandwich"));
-
-  EXPECT_EQ("application", GetIANAMediaType("application/poodle-wrestler"));
-  EXPECT_EQ("audio", GetIANAMediaType("audio/mpeg"));
-  EXPECT_EQ("example", GetIANAMediaType("example/yomomma"));
-  EXPECT_EQ("image", GetIANAMediaType("image/png"));
-  EXPECT_EQ("message", GetIANAMediaType("message/sipfrag"));
-  EXPECT_EQ("model", GetIANAMediaType("model/vrml"));
-  EXPECT_EQ("multipart", GetIANAMediaType("multipart/mixed"));
-  EXPECT_EQ("text", GetIANAMediaType("text/plain"));
-  EXPECT_EQ("video", GetIANAMediaType("video/H261"));
-}
-
 TEST(MimeUtilTest, TestGetExtensionsForMimeType) {
   const struct {
     const char* mime_type;