Multiprocess test client: Android child process launcher rework.

content/shell/android/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/android/config.gni")
 import("//build/config/android/rules.gni")
 import("//build_overrides/v8.gni")
 import("//third_party/icu/config.gni")
 
 generate_jni("content_shell_jni_headers") {
   jni_package = "content/shell"
   sources = [
     "java/src/org/chromium/content_shell/Shell.java",
     "java/src/org/chromium/content_shell/ShellLayoutTestUtils.java",
     "java/src/org/chromium/content_shell/ShellManager.java",
   ]
 }
 
 shared_library("libcontent_shell_content_view") {
   testonly = true
   deps = [
     ":content_shell_jni_headers",
+    "//base/test:test_support_main_stub",
     "//build/config/sanitizers:deps",
     "//components/crash/content/browser",
     "//content/shell:content_shell_lib",
     "//content/shell:pak",
     "//media/base/android",
     "//skia",
   ]
   sources = [
     "shell_library_loader.cc",
   ]
@@ skipping 172 matching lines @@
 
   shared_library("linker_test") {
     testonly = true
     sources = [
       "linker_test_apk/chromium_linker_test_android.cc",
       "linker_test_apk/chromium_linker_test_linker_tests.cc",
     ]
 
     deps = [
       ":linker_test_jni_headers",
+      "//base/test:test_support_main_stub",
       "//build/config/sanitizers:deps",
       "//content/shell:content_shell_lib",
 
       # Required to include "content/public/browser/android/compositor.h"
       # in chromium_linker_test_android.cc :-(
       "//skia",
       "//third_party/re2",
     ]
   }
 
@@ skipping 10 matching lines @@
   testonly = true
   deps = [
     ":content_shell_java",
     "//base:base_java",
     "//content/public/android:content_java",
     "//testing/android/native_test:native_test_java",
     "//ui/android:ui_java",
   ]
   java_files = [ "browsertests/src/org/chromium/content_shell/browsertests/ContentShellBrowserTestActivity.java" ]
 }