Revert of [Android] Refactor the native test wrappers.

testing/android/native_test/java/src/org/chromium/native_test/NativeBrowserTestActivity.java

Index: testing/android/native_test/java/src/org/chromium/native_test/NativeBrowserTestActivity.java
diff --git a/testing/android/native_test/java/src/org/chromium/native_test/NativeBrowserTestActivity.java b/testing/android/native_test/java/src/org/chromium/native_test/NativeBrowserTestActivity.java
deleted file mode 100644
index ac2ddeef84a6dbca5b71775ae60e536965f2757c..0000000000000000000000000000000000000000
--- a/testing/android/native_test/java/src/org/chromium/native_test/NativeBrowserTestActivity.java
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.native_test;
-
-import android.os.Bundle;
-
-/**
- * An {@link android.app.Activity} for running native browser tests.
- */
-public abstract class NativeBrowserTestActivity extends NativeTestActivity {
-
-    private static final String BROWSER_TESTS_FLAGS[] = {
-        // content::kSingleProcessTestsFlag
-        "--single_process",
-
-        // switches::kUseFakeDeviceForMediaStream
-        "--use-fake-device-for-media-stream",
-
-        // switches::kUseFakeUIForMediaStream
-        "--use-fake-ui-for-media-stream"
-    };
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        for (String flag : BROWSER_TESTS_FLAGS) {
-            appendCommandLineFlags(flag);
-        }
-    }
-
-    @Override
-    public void onStart() {
-        initializeBrowserProcess();
-        super.onStart();
-    }
-
-    /** Initializes the browser process.
-     *
-     *  This generally includes loading native libraries and switching to the native command line,
-     *  among other things.
-     */
-    protected abstract void initializeBrowserProcess();
-
-}