Measuring data use of different ModelTypes in Sync Service.

sync/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//testing/test.gni")
 
 component("sync") {
   public_deps = [
     ":sync_core",
@@ skipping 366 matching lines @@
     "syncable/syncable_read_transaction.h",
     "syncable/syncable_util.cc",
     "syncable/syncable_util.h",
     "syncable/syncable_write_transaction.cc",
     "syncable/syncable_write_transaction.h",
     "syncable/transaction_observer.h",
     "syncable/write_transaction_info.cc",
     "syncable/write_transaction_info.h",
     "util/cryptographer.cc",
     "util/cryptographer.h",
+    "util/data_type_histogram.cc",
     "util/data_type_histogram.h",
     "util/encryptor.h",
     "util/extensions_activity.cc",
     "util/extensions_activity.h",
     "util/get_session_name.cc",
     "util/get_session_name.h",
     "util/get_session_name_ios.h",
     "util/get_session_name_ios.mm",
     "util/get_session_name_linux.cc",
     "util/get_session_name_linux.h",
@@ skipping 445 matching lines @@
       ":fake_server_jni",
       ":sync_core",
       ":test_support_sync_fake_server",
       "//base",
       "//sync/protocol:protocol",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }