[Cronet] Hook up library loader, system proxy and network change notifier to async api.

components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java

Index: components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java b/components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java
index a1b13caad5c4097158b7e5ac3d84d2e1c0b2bc26..0d1ffca6439411fe79611218cbcc8c40544bbaca 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/cronet_test_apk/CronetTestBase.java
@@ -87,6 +87,15 @@ public class CronetTestBase extends
         return getActivity();
     }
 
+    // Helper method to tell the activity to skip factory init in onCreate().
+    protected CronetTestActivity skipFactoryInitInOnCreate() {
+        String[] commandLineArgs = {
+                CronetTestActivity.LIBRARY_INIT_KEY, CronetTestActivity.LIBRARY_INIT_SKIP};
+        CronetTestActivity activity =
+                launchCronetTestAppWithUrlAndCommandLineArgs(null, commandLineArgs);
+        return activity;
+    }
+
     /**
      * Waits for the Active shell to finish loading. This times out after
      * WAIT_FOR_ACTIVE_SHELL_LOADING_TIMEOUT milliseconds and it shouldn't be