Upstream: ChildProcessLauncher connects renderer processes of WebAPKs.

content/public/android/java/src/org/chromium/content/browser/ChildProcessCreationParams.java

 // Copyright 2016 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.
 
 package org.chromium.content.browser;
 
 import android.content.Intent;
 
 import org.chromium.base.library_loader.LibraryProcessType;
 
 /**
  * Allows specifying the package name for looking up child services
  * configuration and classes into (if it differs from the application
  * package name, like in the case of Android WebView). Also allows
  * specifying additional child service binging flags.
  */
 public class ChildProcessCreationParams {
     private final String mPackageName;
     private final int mExtraBindFlags;
     private final int mLibraryProcessType;
     private static final String EXTRA_LIBRARY_PROCESS_TYPE =
             "org.chromium.content.common.child_service_params.library_process_type";
 
     private static volatile ChildProcessCreationParams sChildProcessCreationParams;
 
     public static void set(ChildProcessCreationParams params) {
+        assert params != null;
         sChildProcessCreationParams = params;
     }
 
     public static ChildProcessCreationParams get()  {
         return sChildProcessCreationParams;
     }
 
     public ChildProcessCreationParams(String packageName, int extraBindFlags,
             int libraryProcessType) {
         mPackageName = packageName;
         mExtraBindFlags = extraBindFlags;
         mLibraryProcessType = libraryProcessType;
     }
 
+    @Override
+    public ChildProcessCreationParams clone() {
+        return new ChildProcessCreationParams(mPackageName, mExtraBindFlags, mLibraryProcessType);

[pkotwicz, 2016/05/27 21:10:13]

Can you please check that there are no errors thrown when compiling with
run_findbugs=true

[Xi Han, 2016/05/27 21:31:39]

Good catch. Rename it to copy().

+    }
+
     public String getPackageName() {
         return mPackageName;
     }
 
+    public int getExtraBindFlags() {
+        return mExtraBindFlags;
+    }
+
     /**
      * Adds required extra flags to the given child service binding flags and returns them.
      * Does not modify the state of the ChildProcessCreationParams instance.
      *
      * @param bindFlags Source bind flags to modify.
      * @return Bind flags with extra flags added.
      */
     public int addExtraBindFlags(int bindFlags) {
         return bindFlags | mExtraBindFlags;
     }
 
     public void addIntentExtras(Intent intent) {
         intent.putExtra(EXTRA_LIBRARY_PROCESS_TYPE, mLibraryProcessType);
     }
 
     public static int getLibraryProcessType(Intent intent) {
         return intent.getIntExtra(EXTRA_LIBRARY_PROCESS_TYPE,
                 LibraryProcessType.PROCESS_CHILD);
     }
 }