Making ChildProcessConnection only accessed from the launcher thread.

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("//third_party/icu/config.gni")
 
 generate_jni("content_shell_jni_headers") {
   jni_package = "content/shell"
@@ skipping 78 matching lines @@
     "//media/capture/video/android:capture_java",
     "//net/android:net_java",
     "//ui/android:ui_java",
   ]
 
   # Supply manifest for linting.
   android_manifest = content_shell_manifest
 
   java_files = [
     "shell_apk/src/org/chromium/content_shell_apk/ChildProcessLauncherTestHelperService.java",
+    "shell_apk/src/org/chromium/content_shell_apk/ChildProcessLauncherTestUtils.java",
     "shell_apk/src/org/chromium/content_shell_apk/ContentShellActivity.java",
     "shell_apk/src/org/chromium/content_shell_apk/ContentShellApplication.java",
   ]
 }
 
 android_assets("content_shell_assets") {
   sources = [
     "$root_out_dir/content_shell.pak",
   ]
   disable_compression = true
@@ skipping 155 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" ]
 }