android: Remove nativeIsSingleProcess

content/browser/child_process_launcher_helper_android.cc

 // Copyright 2017 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.
 
 #include "content/browser/child_process_launcher_helper_android.h"
 
 #include <memory>
 
 #include "base/android/apk_assets.h"
 #include "base/android/context_utils.h"
@@ skipping 263 matching lines @@
                                   jint handle) {
   StartChildProcessCallback* callback =
       reinterpret_cast<StartChildProcessCallback*>(client_context);
   int launch_result = (handle == base::kNullProcessHandle)
                           ? LAUNCH_RESULT_FAILURE
                           : LAUNCH_RESULT_SUCCESS;
   callback->Run(static_cast<base::ProcessHandle>(handle), launch_result);
   delete callback;
 }
 
-jboolean IsSingleProcess(JNIEnv* env, const JavaParamRef<jclass>& clazz) {
-  return base::CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kSingleProcess);
-}
-
 bool RegisterChildProcessLauncher(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content