RenderFrameProxyHost::OnOpenURL needs to validate resource request body.

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("//gpu/vulkan/features.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
@@ skipping 1287 matching lines @@
     "renderer_host/text_input_manager.cc",
     "renderer_host/text_input_manager.h",
     "renderer_host/ui_events_helper.cc",
     "renderer_host/ui_events_helper.h",
     "renderer_host/webmenurunner_mac.h",
     "renderer_host/webmenurunner_mac.mm",
     "resolve_proxy_msg_helper.cc",
     "resolve_proxy_msg_helper.h",
     "resource_context_impl.cc",
     "resource_context_impl.h",
+    "resource_request_body_browser_utils.cc",
+    "resource_request_body_browser_utils.h",
     "screen_orientation/screen_orientation_provider.cc",
     "screen_orientation/screen_orientation_provider.h",
     "service_manager/common_browser_interfaces.cc",
     "service_manager/common_browser_interfaces.h",
     "service_manager/merge_dictionary.cc",
     "service_manager/merge_dictionary.h",
     "service_manager/service_manager_context.cc",
     "service_manager/service_manager_context.h",
     "service_worker/embedded_worker_instance.cc",
     "service_worker/embedded_worker_instance.h",
@@ skipping 820 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }