Revert of Remove some legacy versions of StartsWith and EndsWith.

extensions/utility/unpacker_unittest.cc

Index: extensions/utility/unpacker_unittest.cc
diff --git a/extensions/utility/unpacker_unittest.cc b/extensions/utility/unpacker_unittest.cc
index 82e5a1f7dc1e5bcf4decd4591649df51a1d4790b..bb99aaeed246a6d4a279e24bf213019abdb67626 100644
--- a/extensions/utility/unpacker_unittest.cc
+++ b/extensions/utility/unpacker_unittest.cc
@@ -171,8 +171,7 @@
 
   EXPECT_FALSE(unpacker_->Run());
   EXPECT_TRUE(base::StartsWith(unpacker_->error_message(),
-                               ASCIIToUTF16(kExpected),
-                               base::CompareCase::INSENSITIVE_ASCII))
+                               ASCIIToUTF16(kExpected), false))
       << "Expected prefix: \"" << kExpected << "\", actual error: \""
       << unpacker_->error_message() << "\"";
 }
@@ -182,8 +181,7 @@
   SetupUnpacker("bad_image.crx");
   EXPECT_FALSE(unpacker_->Run());
   EXPECT_TRUE(base::StartsWith(unpacker_->error_message(),
-                               ASCIIToUTF16(kExpected),
-                               base::CompareCase::INSENSITIVE_ASCII))
+                               ASCIIToUTF16(kExpected), false))
       << "Expected prefix: \"" << kExpected << "\", actual error: \""
       << unpacker_->error_message() << "\"";
 }