Introduce ResourceRequesterInfo to abstract the requester of resource request

content/browser/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("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 784 matching lines @@
     "loader/resource_hints_impl.cc",
     "loader/resource_loader.cc",
     "loader/resource_loader.h",
     "loader/resource_loader_delegate.h",
     "loader/resource_message_delegate.cc",
     "loader/resource_message_delegate.h",
     "loader/resource_message_filter.cc",
     "loader/resource_message_filter.h",
     "loader/resource_request_info_impl.cc",
     "loader/resource_request_info_impl.h",
+    "loader/resource_requester_info.cc",
+    "loader/resource_requester_info.h",
     "loader/resource_scheduler.cc",
     "loader/resource_scheduler.h",
     "loader/resource_scheduler_filter.cc",
     "loader/resource_scheduler_filter.h",
     "loader/stream_resource_handler.cc",
     "loader/stream_resource_handler.h",
     "loader/stream_writer.cc",
     "loader/stream_writer.h",
     "loader/sync_resource_handler.cc",
     "loader/sync_resource_handler.h",
@@ skipping 1160 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }