Move NetworkService mojom files to content/public/common.

content/public/common/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/buildflag_header.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
@@ skipping 152 matching lines @@
     "media_metadata.cc",
     "media_metadata.h",
     "media_stream_request.cc",
     "media_stream_request.h",
     "menu_item.cc",
     "menu_item.h",
     "mhtml_generation_params.cc",
     "mhtml_generation_params.h",
     "mojo_channel_switches.cc",
     "mojo_channel_switches.h",
+    "mutable_network_traffic_annotation_tag_struct_traits.h",
     "notification_resources.cc",
     "notification_resources.h",
     "origin_trial_policy.cc",
     "origin_trial_policy.h",
     "origin_util.h",
     "page_importance_signals.h",
     "page_state.cc",
     "page_state.h",
     "page_type.h",
     "page_zoom.h",
@@ skipping 18 matching lines @@
     "renderer_preferences.cc",
     "renderer_preferences.h",
     "request_context_frame_type.h",
     "request_context_type.h",
     "resource_devtools_info.cc",
     "resource_devtools_info.h",
     "resource_request.cc",
     "resource_request.h",
     "resource_request_body.cc",
     "resource_request_body.h",
+    "resource_request_completion_status.cc",
+    "resource_request_completion_status.h",
     "resource_response.cc",
     "resource_response.h",
     "resource_response_info.cc",
     "resource_response_info.h",
     "resource_type.cc",
     "resource_type.h",
     "result_codes.h",
     "sandbox_init.h",
     "sandbox_linux.h",
     "sandbox_type.h",
@@ skipping 31 matching lines @@
   ]
 
   configs += [
     "//build/config:precompiled_headers",
     "//content:content_implementation",
   ]
 
   public_configs = [ "//v8:external_startup_data" ]
 
   public_deps = [
+    ":interfaces",
     ":service_names",
     "//content/common",
-    "//content/public/common:interfaces",
     "//ipc",
     "//mojo/edk/system",
     "//mojo/public/cpp/bindings",
     "//net",
     "//services/service_manager/embedder",
     "//services/service_manager/public/cpp",
     "//services/service_manager/public/interfaces",
     "//third_party/WebKit/public:blink_headers",
     "//ui/accessibility",
     "//ui/surface",
@@ skipping 22 matching lines @@
     "//ui/gfx/ipc/geometry",
     "//ui/gfx/ipc/skia",
   ]
 
   if (use_aura) {
     deps += [ "//ui/aura" ]
   }
 
   # //content/common needs to include public headers.
   allow_circular_includes_from = [
+    ":interfaces",
     "//content/common",
     "//content/common:mojo_bindings",
   ]
 
   if (!enable_plugins) {
     sources -= [
       "pepper_plugin_info.cc",
       "pepper_plugin_info.h",
     ]
   }
@@ skipping 16 matching lines @@
   deps = [
     ":features",
     "//base",
   ]
   sources = [
     "feature_h264_with_openh264_ffmpeg.cc",
     "feature_h264_with_openh264_ffmpeg.h",
   ]
 }
 
 mojom("interfaces") {

[Nico, 2017/08/16 20:54:39]

Doesn't this now need a public_dep on ui/accessibility? That's what depends on
ax_gen which generates ui/accessibility/ax_enums.h, which is used while this
target is built:

FAILED: obj/content/public/common/interfaces/url_loader_factory.mojom.obj 
../../third_party/llvm-build/Release+Asserts/bin/clang-cl --rsp-quoting=posix
/nologo /showIncludes 
@obj/content/public/common/interfaces/url_loader_factory.mojom.obj.rsp /c
gen/content/public/common/url_loader_factory.mojom.cc
/Foobj/content/public/common/interfaces/url_loader_factory.mojom.obj
/Fd"obj/content/public/common/interfaces_cc.pdb"
In file included from gen/content/public/common/url_loader_factory.mojom.cc:29:
In file included from ../../content/common/resource_messages.h:17:
In file included from ../../content/public/common/common_param_traits.h:24:
In file included from
../../content/public/common/common_param_traits_macros.h:28:
../../ui/accessibility/ax_node_data.h(17,10):  fatal error:
'ui/accessibility/ax_enums.h' file not found
#include "ui/accessibility/ax_enums.h"
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

(Or maybe that dependency is missing elsewhere in content?)

[Nico, 2017/08/16 21:02:44]

After some more digging, I think this flake is unrelated to your change;
https://chromium-review.googlesource.com/617768 might fix it.

+  # Must depend on //content/public/common/ instead, for component build.
+  visibility = [
+    ":common_sources",
+    "//content/common/*",
+  ]
+
   sources = [
+    "mutable_network_traffic_annotation_tag.mojom",
+    "network_service.mojom",
     "network_service_test.mojom",
+    "url_loader.mojom",
+    "url_loader_factory.mojom",
     "window_container_type.mojom",
   ]
+
+  public_deps = [
+    "//mojo/common:common_custom_types",
+    "//url/mojo:url_mojom_gurl",
+    "//url/mojo:url_mojom_origin",
+  ]
+
+  component_output_prefix = "content_public_common_mojo_bindings"
+  export_class_attribute = "CONTENT_EXPORT"
+  export_define = "CONTENT_IMPLEMENTATION=1"
+  export_header = "content/common/content_export.h"
 }
 
 mojom("service_names") {
   sources = [
     "service_names.mojom",
   ]
 }
 
 mojom("resource_type_bindings") {
   sources = [
     "resource_type.mojom",
   ]
 }