Log the size of each of the stores and complete DB on launch and after each

components/safe_browsing_db/v4_protocol_manager_util.cc

 // Copyright 2016 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 "components/safe_browsing_db/v4_protocol_manager_util.h"
 
 #include "base/base64.h"
+#include "base/files/file_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/rand_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "crypto/sha2.h"
 #include "net/base/escape.h"
 #include "net/http/http_request_headers.h"
 #include "url/url_util.h"
 
 using base::Time;
@@ skipping 484 matching lines @@
 
 // static
 void V4ProtocolManagerUtil::SetClientInfoFromConfig(
     ClientInfo* client_info,
     const V4ProtocolConfig& config) {
   DCHECK(client_info);
   client_info->set_client_id(config.client_name);
   client_info->set_client_version(config.version);
 }
 
+// static
+int64_t V4ProtocolManagerUtil::GetFileSizeOrZero(
+    const base::FilePath& file_path) {
+  int64_t size_64;

[Scott Hess - ex-Googler, 2016/10/21 23:36:45]

Maybe strip the _64 while you're at it.  I don't recall why it was in there in
the first place, but hardly necessary for a 4-line function.

[vakh (use Gerrit instead), 2016/10/24 19:39:32]

Done.

+  if (!base::GetFileSize(file_path, &size_64))
+    return 0;
+  return size_64;
+}
+
 }  // namespace safe_browsing