Upstream: ChildProcessLauncher connects renderer processes of WebAPKs.

chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java
index 5887eba84ce825c158613288b10d58f446e3e59d..5a954c34b7e8832098889972982151476b6fd333 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java
@@ -23,6 +23,7 @@ import android.view.ViewTreeObserver.OnPreDrawListener;
 import android.view.WindowManager;
 
 import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.base.ContextUtils;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.library_loader.LoaderErrors;
 import org.chromium.base.library_loader.ProcessInitException;
@@ -33,6 +34,7 @@ import org.chromium.chrome.browser.metrics.MemoryUma;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.tabmodel.DocumentModeAssassin;
 import org.chromium.chrome.browser.upgrade.UpgradeActivity;
+import org.chromium.content.browser.ChildProcessCreationParams;
 import org.chromium.ui.base.DeviceFormFactor;
 
 import java.lang.reflect.Field;
@@ -108,9 +110,18 @@ public abstract class AsyncInitializationActivity extends AppCompatActivity impl
 
         // Kick off long running IO tasks that can be done in parallel.
         mNativeInitializationController = new NativeInitializationController(this, this);
+        initializeChildProcessCreationParams();
         mNativeInitializationController.startBackgroundTasks();
     }
 
+    /**
+     * Allow derived classes to initialize their own {@link ChildProcessCreationParams}.
+     */
+    protected void initializeChildProcessCreationParams() {
+        ChromeApplication chrome = (ChromeApplication) ContextUtils.getApplicationContext();
+        ChildProcessCreationParams.set(chrome.getChildProcessCreationParams());
+    }
+
     @Override
     public void postInflationStartup() {
         final View firstDrawView = getViewToBeDrawnBeforeInitializingNative();