android: Limit num renderer to service slots

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 221 matching lines @@
       base::Bind(&ChildProcessLauncherHelper::PostLaunchOnLauncherThread, this,
                  base::Passed(std::move(process)), launch_result,
                  on_client_thread));
   if (on_client_thread) {
     ChildProcessLauncherHelper::Process process;
     process.process = base::Process(handle);
     PostLaunchOnClientThread(std::move(process), launch_result);
   }
 }
 
+// static
+size_t ChildProcessLauncherHelper::GetNumberOfRendererSlots() {
+  return static_cast<size_t>(
+      Java_ChildProcessLauncherHelper_getNumberOfRendererSlots(
+          AttachCurrentThread()));
+}
+
 }  // namespace internal
 
 bool RegisterChildProcessLauncher(JNIEnv* env) {
   return internal::RegisterNativesImpl(env);
 }
 
 }  // namespace content