Write out CacheStorageCache size to index file.

content/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 972 matching lines @@
     "../browser/bluetooth/bluetooth_blocklist_unittest.cc",
     "../browser/bluetooth/bluetooth_device_chooser_controller_unittest.cc",
     "../browser/bluetooth/frame_connected_bluetooth_devices_unittest.cc",
     "../browser/browser_associated_interface_unittest.cc",
     "../browser/browser_thread_unittest.cc",
     "../browser/browser_url_handler_impl_unittest.cc",
     "../browser/browsing_data/clear_site_data_throttle_unittest.cc",
     "../browser/byte_stream_unittest.cc",
     "../browser/cache_storage/cache_storage_blob_to_disk_cache_unittest.cc",
     "../browser/cache_storage/cache_storage_cache_unittest.cc",
+    "../browser/cache_storage/cache_storage_index_unittest.cc",
     "../browser/cache_storage/cache_storage_manager_unittest.cc",
     "../browser/cache_storage/cache_storage_operation_unittest.cc",
     "../browser/cache_storage/cache_storage_scheduler_unittest.cc",
     "../browser/child_process_security_policy_unittest.cc",
     "../browser/cocoa/system_hotkey_map_unittest.mm",
     "../browser/compositor/reflector_impl_unittest.cc",
     "../browser/compositor/software_browser_compositor_output_surface_unittest.cc",
     "../browser/compositor/software_output_device_ozone_unittest.cc",
     "../browser/database_quota_client_unittest.cc",
     "../browser/database_tracker_unittest.cc",
@@ skipping 722 matching lines @@
   if (is_android) {
     deps += [ "//testing/android/native_test:native_test_native_code" ]
   }
 }
 
 group("fuzzers") {
   deps = [
     "//content/test/fuzzer",
   ]
 }