Allow mojo_runner to connect to arbitrary executables.

mojo/runner/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("//mojo/generate_mojo_shell_assets_list.gni")
 import("//mojo/public/mojo_application.gni")
 import("//testing/test.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
 
 # We don't support building in the component build since mojo apps are
 # inherently components.
 assert(!is_component_build)
 
 group("runner") {
   testonly = true
 
   deps = [
     ":mojo_runner",
+    "//mojo/runner/child",
   ]
 }
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
 
 source_set("register_local_aliases_fwd") {
   sources = [
@@ skipping 58 matching lines @@
       ":register_local_aliases_fwd",
       "//third_party/mojo/src/mojo/edk/system",
     ]
 
     # On android, the executable is also the native library used by the apk.
     # It means dynamic symbols must be preserved and exported.
     ldflags = [ "-Wl,--export-dynamic" ]
   }
 }
 
-source_set("in_process_native_runner") {
+source_set("init") {
   sources = [
-    "in_process_native_runner.cc",
-    "in_process_native_runner.h",
-  ]
-
-  public_deps = [
-    ":native_application_support",
-    "//mojo/shell",
+    "init.cc",
+    "init.h",
   ]
 
   deps = [
+    ":switches",
     "//base",
   ]
 }
 
 source_set("lib") {
   sources = [
     "child_process.cc",
     "child_process.h",
     "child_process_host.cc",
     "child_process_host.h",
     "context.cc",
     "context.h",
-    "init.cc",
-    "init.h",
+    "in_process_native_runner.cc",
+    "in_process_native_runner.h",
     "out_of_process_native_runner.cc",
     "out_of_process_native_runner.h",
     "scoped_user_data_dir.cc",
     "scoped_user_data_dir.h",
     "task_runners.cc",
     "task_runners.h",
     "tracer.cc",
     "tracer.h",
   ]
 
   deps = [
-    ":child_process_bindings",
-    ":in_process_native_runner",
+    ":init",
     ":native_application_support",
     "//base",
     "//base/third_party/dynamic_annotations",
     "//base:base_static",
     "//components/devtools_service/public/cpp",
     "//components/devtools_service/public/interfaces",
     "//mojo/application/public/cpp",
     "//mojo/message_pump",
     "//mojo/package_manager",
+    "//mojo/runner/child:interfaces",
     "//mojo/services/network/public/interfaces",
     "//mojo/services/tracing/public/cpp",
     "//mojo/services/tracing/public/interfaces",
     "//mojo/shell",
     "//mojo/util:filename_util",
     "//third_party/mojo/src/mojo/edk/system",
     "//ui/gl",
     "//url",
   ]
 
   if (is_linux && !is_android) {
     sources += [
       "linux_sandbox.cc",
       "linux_sandbox.h",
     ]
 
     deps += [
       "//sandbox/linux:sandbox",
       "//sandbox/linux:sandbox_services",
     ]
   }
 
   public_deps = [
+    ":init",
     ":switches",
   ]
 
   data_deps = [
     "//components/devtools_service",
     "//mojo/services/tracing",
   ]
 
   if (is_android) {
     sources += [
@@ skipping 234 matching lines @@
     java_files =
         [ "android/tests/src/org/chromium/mojo/shell/ShellTestBase.java" ]
 
     deps = [
       ":java",
       "//base:base_java",
     ]
   }
 }
 
-mojom("child_process_bindings") {
-  sources = [
-    "child_process.mojom",
-  ]
-
-  deps = [
-    "//mojo/application/public/interfaces",
-  ]
-
-  import_dirs = [ "//mojo/services" ]
-}
-
 test("mojo_runner_unittests") {
   sources = [
     "../fetcher/about_fetcher_unittest.cc",
     "../fetcher/data_fetcher_unittest.cc",
     "../fetcher/network_fetcher_unittest.cc",
     "../fetcher/url_resolver_unittest.cc",
     "child_process_host_unittest.cc",
     "data_pipe_peek_unittest.cc",
     "in_process_native_runner_unittest.cc",
     "native_runner_unittest.cc",
     "register_local_aliases.cc",
     "register_local_aliases.h",
     "shell_test_base.cc",
     "shell_test_base.h",
     "shell_test_base_android.cc",
     "shell_test_base_unittest.cc",
     "shell_test_main.cc",
   ]
 
   deps = [
-    ":in_process_native_runner",
     ":lib",
     "//base",
     "//base:i18n",
     "//base/test:test_support",
     "//mojo/application/public/cpp",
     "//mojo/common",
     "//mojo/environment:chromium",
     "//mojo/fetcher",
     "//mojo/message_pump",
     "//mojo/package_manager",
@@ skipping 36 matching lines @@
   ]
 
   deps = [
     "//base",
     "//mojo/application/public/cpp:test_support",
     "//mojo/runner/test:bindings",
     "//mojo/services/network/public/interfaces",
     "//third_party/mojo/src/mojo/public/cpp/bindings:callback",
   ]
 }