Only depend on child sources from app in both target

content/public/app/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.
 
 # App different than the regular content subcomponents (see comments in
 # //content/BUILD.gn) because it has to support the browser/child process split
 # (the "both" target include both browser and child process files and is used
 # for testing).
 #
 # In non-component mode, browser, child, and both all follow the same structure:
@@ skipping 20 matching lines @@
   "content_main_delegate.h",
   "content_main_runner.h",
   "sandbox_helper_win.h",
 ]
 
 public_app_shared_deps = [
   "//base",
   "//base:i18n",
   "//content:export",
   "//content/public/common:common_sources",
-  "//content/public/gpu:gpu_sources",
-  "//content/public/renderer:renderer_sources",
-  "//content/public/utility:utility_sources",
 ]
 
 if (use_aura) {
   public_app_shared_deps += [ "//ui/aura" ]
 }
 
 if (is_component_build) {
   source_set("both_sources") {
     # Only the main content shared library can pull this in.
     visibility = [ "//content:content" ]
 
     sources = public_app_shared_sources
 
     configs += [ "//content:content_implementation" ]
 
     deps = public_app_shared_deps + [
              "//content/app:both",
              "//content/public/browser:browser_sources",
+             "//content/public/gpu:gpu_sources",
+             "//content/public/renderer:renderer_sources",
+             "//content/public/utility:utility_sources",
            ]
 
     allow_circular_includes_from = [
       # This target is a pair with the non-public version. They always go
       # together and include headers from each other.
       "//content/app:both",
     ]
   }
 
   # These all just forward to content, which in turn depends on "both_sources".
@@ skipping 26 matching lines @@
 
   source_set("both") {
     check_includes = false  # See comment above.
 
     sources = public_app_shared_sources
     configs += [ "//content:content_implementation" ]
     deps = public_app_shared_deps + [
              "//content/app:both",
              "//content/public/browser",
              "//content/public/common",
+             "//content/public/gpu:gpu_sources",
+             "//content/public/renderer:renderer_sources",
+             "//content/public/utility:utility_sources",
            ]
 
     allow_circular_includes_from = [
       # This target is a pair with the non-public version. They always go
       # together and include headers from each other.
       "//content/app:both",
     ]
   }
 
   if (is_multi_dll_chrome) {
@@ skipping 80 matching lines @@
 
 service_manifest("renderer_manifest") {
   name = "content_renderer"
   source = "mojo/content_renderer_manifest.json"
 }
 
 service_manifest("utility_manifest") {
   name = "content_utility"
   source = "mojo/content_utility_manifest.json"
 }