webapk: Avoid overwriting default CreationParams

chrome/browser/android/web_contents_factory.cc

Index: chrome/browser/android/web_contents_factory.cc
diff --git a/chrome/browser/android/web_contents_factory.cc b/chrome/browser/android/web_contents_factory.cc
index 37a07999eb521ed68e1d2cf167202187a83cb0d5..1f8c8e6999d8044468467af99dabf075ca78d721 100644
--- a/chrome/browser/android/web_contents_factory.cc
+++ b/chrome/browser/android/web_contents_factory.cc
@@ -9,6 +9,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "content/public/browser/android/content_view_core.h"
+#include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/WebContentsFactory_jni.h"
 
@@ -18,6 +19,7 @@ using base::android::ScopedJavaLocalRef;
 static ScopedJavaLocalRef<jobject> CreateWebContents(
     JNIEnv* env,
     const JavaParamRef<jclass>& clazz,
+    jint child_process_param_id,
     jboolean incognito,
     jboolean initially_hidden,
     jboolean initialize_renderer) {
@@ -25,7 +27,8 @@ static ScopedJavaLocalRef<jobject> CreateWebContents(
   if (incognito)
     profile = profile->GetOffTheRecordProfile();
 
-  content::WebContents::CreateParams params(profile);
+  content::WebContents::CreateParams params(
+      profile, content::SiteInstance::Create(profile, child_process_param_id));
   params.initially_hidden = static_cast<bool>(initially_hidden);
   params.initialize_renderer = static_cast<bool>(initialize_renderer);
   return content::WebContents::Create(params)->GetJavaWebContents();