Add gpu_ipc_service_unittests to buildbot configs

gpu/gpu_ipc_service_unittests_apk.isolate

 # Copyright 2016 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.
 {
   'includes': [
     '../build/android/android.isolate',
   ],
   'variables': {
     'command': [
-      '<(PRODUCT_DIR)/bin/run_command_buffer_gles2_tests',
+      '<(PRODUCT_DIR)/bin/run_gpu_ipc_service_unittests',
       '--logcat-output-dir', '${ISOLATED_OUTDIR}/logcats',
     ],
     'files': [
-      '<(PRODUCT_DIR)/bin/run_command_buffer_gles2_tests',
-      '<(PRODUCT_DIR)/command_buffer_gles2_tests_apk/',
+      '<(PRODUCT_DIR)/bin/run_gpu_ipc_service_unittests',
+      '<(PRODUCT_DIR)/gpu_ipc_service_unittests_apk/',
     ]
   },
 }