Move //components/metrics/compression_utils into standalone component

sync/internal_api/http_bridge.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/internal_api/public/http_bridge.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 44 matching lines @@
 void RecordSyncResponseContentLengthHistograms(int64 compressed_content_length,
                                                int64 original_content_length) {
   UMA_HISTOGRAM_COUNTS("Sync.ResponseContentLength.Compressed",
                        compressed_content_length);
   UMA_HISTOGRAM_COUNTS("Sync.ResponseContentLength.Original",
                        original_content_length);
 }
 
 // -----------------------------------------------------------------------------
 // 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 code is 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.
 //------------------------------------------------------------------------------
 // The difference in bytes between a zlib header and a gzip header.
 const size_t kGzipZlibHeaderDifferenceBytes = 16;
 
 // Pass an integer greater than the following get a gzip header instead of a
 // zlib header when calling deflateInit2() and inflateInit2().
 const int kWindowBitsToGetGzipHeader = 16;
@@ skipping 448 matching lines @@
   int64 sane_time_ms = 0;
   if (base::StringToInt64(sane_time_str, &sane_time_ms)) {
     network_time_update_callback_.Run(
         base::Time::FromJsTime(sane_time_ms),
         base::TimeDelta::FromMilliseconds(1),
         fetch_state_.end_time - fetch_state_.start_time);
   }
 }
 
 }  // namespace syncer