webapk: Avoid overwriting default CreationParams

chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java

Index: chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java
diff --git a/chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java b/chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java
index 4ac91c48da788267472246c63c9cb66a1d6c6c10..d7121cff9f63ef6d11cd7d544078eccba74b30d8 100644
--- a/chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java
+++ b/chrome/test/android/javatests/src/org/chromium/chrome/test/util/PrerenderTestHelper.java
@@ -9,6 +9,7 @@ import android.graphics.Rect;
 import junit.framework.Assert;
 
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.process_launcher.ChildProcessCreationParams;
 import org.chromium.chrome.browser.TabLoadStatus;
 import org.chromium.chrome.browser.prerender.ExternalPrerenderHandler;
 import org.chromium.chrome.browser.tab.Tab;
@@ -100,7 +101,8 @@ public class PrerenderTestHelper {
                                         .getContentHeightPixInt());
                         boolean didPrerender =
                                 prerenderHandler.addPrerender(currentTab.getProfile(),
-                                        currentTab.getWebContents(), testUrl, null, bounds, true)
+                                        currentTab.getWebContents(), testUrl, null, bounds, true,
+                                        ChildProcessCreationParams.DEFAULT_ID)
                                 != null;
                         Assert.assertTrue("Failed to prerender test url: " + testUrl, didPrerender);
                         return prerenderHandler;