Make MetricsService upload logs through an interface.

components/metrics/net/compression_utils.cc

 // Copyright 2013 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 "chrome/browser/metrics/compression_utils.h"
+#include "components/metrics/net/compression_utils.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "third_party/zlib/zlib.h"
 
 namespace {
 
 // The difference in bytes between a zlib header and a gzip header.
 const size_t kGzipZlibHeaderDifferenceBytes = 16;
@@ skipping 47 matching lines @@
     err = deflate(&stream, Z_FINISH);
     if (err != Z_STREAM_END) {
         deflateEnd(&stream);
         return err == Z_OK ? Z_BUF_ERROR : err;
     }
     *dest_length = stream.total_out;
 
     err = deflateEnd(&stream);
     return err;
 }
+
 }  // namespace
 
-namespace chrome {
+namespace metrics {
 
 bool GzipCompress(const std::string& input, std::string* output) {
   std::vector<Bytef> compressed_data(kGzipZlibHeaderDifferenceBytes +
                                      compressBound(input.size()));
 
   uLongf compressed_size = compressed_data.size();
   if (GzipCompressHelper(&compressed_data.front(),
                          &compressed_size,
                          bit_cast<const Bytef*>(input.data()),
                          input.size()) != Z_OK)
     return false;
 
   compressed_data.resize(compressed_size);
   output->assign(compressed_data.begin(), compressed_data.end());
   return true;
 }
-}  // namespace chrome
+
+}  // namespace metrics