Move //components/metrics/compression_utils into standalone component

sync/internal_api/http_bridge_unittest.cc

Index: sync/internal_api/http_bridge_unittest.cc
diff --git a/sync/internal_api/http_bridge_unittest.cc b/sync/internal_api/http_bridge_unittest.cc
index 24fc6cd608aecb58d8d52a97db49d16728f56c2a..4ea4e705d749d67d88d7bd4c2916c283aebce657 100644
--- a/sync/internal_api/http_bridge_unittest.cc
+++ b/sync/internal_api/http_bridge_unittest.cc
@@ -27,9 +27,9 @@ const base::FilePath::CharType kDocRoot[] =
 
 // -----------------------------------------------------------------------------
 // The rest of the code in the anon namespace is copied from
-// components/metrics/compression_utils.cc
+// components/compression/compression_utils.cc
 // TODO(gangwu): crbug.com/515695. The following codes are copied from
-// components/metrics/compression_utils.cc, we copied them because if we
+// components/compression/compression_utils.cc, we copied them because if we
 // reference them, we will get cycle dependency warning. Once the functions
 // have been moved from //component to //base, we can remove the following
 // functions.