Move //components/metrics/compression_utils into standalone component

components/compression/BUILD.gn

Index: components/compression/BUILD.gn
diff --git a/components/proximity_auth/logging/BUILD.gn b/components/compression/BUILD.gn
similarity index 58%
copy from components/proximity_auth/logging/BUILD.gn
copy to components/compression/BUILD.gn
index dbc8045d80c5fbf811625839ccc6eac90c77d129..e35fe238c426047a8f75857dc2ee19da23990f2f 100644
--- a/components/proximity_auth/logging/BUILD.gn
+++ b/components/compression/BUILD.gn
@@ -2,27 +2,25 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("logging") {
+# GYP version: components/compression.gypi:compression
+source_set("compression") {
   sources = [
-    "log_buffer.cc",
-    "log_buffer.h",
-    "logging.cc",
-    "logging.h",
+    "compression_utils.cc",
+    "compression_utils.h",
   ]
-
   deps = [
     "//base",
+    "//third_party/zlib",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "logging_unittest.cc",
+    "compression_utils_unittest.cc",
   ]
-
   deps = [
-    "//base/test:test_support",
+    ":compression",
     "//testing/gtest",
   ]
 }