Add Cronet Test App that uses libcronet_tests.so with net test utilities.

components/cronet/android/test/src/org/chromium/cronet_test_apk/CronetTestApplication.java

Index: components/cronet/android/test/src/org/chromium/cronet_test_apk/CronetTestApplication.java
diff --git a/components/cronet/android/sample/src/org/chromium/cronet_sample_apk/CronetSampleApplication.java b/components/cronet/android/test/src/org/chromium/cronet_test_apk/CronetTestApplication.java
similarity index 67%
copy from components/cronet/android/sample/src/org/chromium/cronet_sample_apk/CronetSampleApplication.java
copy to components/cronet/android/test/src/org/chromium/cronet_test_apk/CronetTestApplication.java
index 3b715871a900cfb124ff3b2cbad11a1172e431e5..633bcad82f117c9fcdcc062b4a75098159b2242c 100644
--- a/components/cronet/android/sample/src/org/chromium/cronet_sample_apk/CronetSampleApplication.java
+++ b/components/cronet/android/test/src/org/chromium/cronet_test_apk/CronetTestApplication.java
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package org.chromium.cronet_sample_apk;
+package org.chromium.cronet_test_apk;
 
 import android.app.Application;
 import android.util.Log;
@@ -10,12 +10,12 @@ import android.util.Log;
 import org.chromium.base.PathUtils;
 
 /**
- * Application for managing the Cronet Sample.
+ * Application for managing the Cronet Test.
  */
-public class CronetSampleApplication extends Application {
-    private static final String TAG = "CronetSampleApplication";
+public class CronetTestApplication extends Application {
+    private static final String TAG = "CronetTestApplication";
 
-    private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "cronet_sample";
+    private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "cronet_test";
 
     @Override
     public void onCreate() {
@@ -25,7 +25,7 @@ public class CronetSampleApplication extends Application {
 
     public static void initializeApplicationParameters() {
         PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
-        Log.i(TAG, "CronetSampleApplication.initializeApplicationParameters()" +
+        Log.i(TAG, "CronetTestApplication.initializeApplicationParameters()" +
                    " success.");
     }
 }