[Build] Add incremental_javac_junit_tests to waterfall

This CL adds incremental_javac_junit_tests to the
android-lollipop-arm-rel bot.

BUG=1170778

Change-Id: I32d5f278d2cdb62b08be0c326cbbd622d9fdc98a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2971576
Reviewed-by: Erik Staab <estaab@chromium.org>
Commit-Queue: Peter Kotwicz <pkotwicz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#894425}

testing/buildbot/chromium.android.json

@@ -27316,6 +27316,17 @@
         "test": "zlib_unittests",
         "test_id_prefix": "ninja://third_party/zlib:zlib_unittests/"
       }
+    ],
+    "junit_tests": [
+      {
+        "name": "incremental_javac_junit_tests",
+        "resultdb": {
+          "enable": true
+        },
+        "swarming": {},
+        "test": "incremental_javac_junit_tests",
+        "test_id_prefix": "ninja://build/android/test:incremental_javac_junit_tests/"
+      }
     ]
   },
   "android-marshmallow-arm64-rel": {

testing/buildbot/gn_isolate_map.pyl

@@ -951,6 +951,10 @@
     "label": "//fuchsia/http:http_service_tests",
     "type": "console_test_launcher",
   },
+  "incremental_javac_junit_tests": {
+    "label": "//build/android/test:incremental_javac_junit_tests",
+    "type": "junit_test",
+  },
   "install_static_unittests": {
     "label": "//chrome/install_static:install_static_unittests",
     "type": "console_test_launcher",

testing/buildbot/test_suites.pyl

@@ -25,6 +25,9 @@
       # Name is vr_*, but actually has AR tests.
       'vr_android_unittests': {},
     },
+    'android_build_junit_tests': {
+      'incremental_javac_junit_tests': {}
+    },
     'android_ddready_vr_gtests': {
       'chrome_public_test_vr_apk-ddready-cardboard': {
         'args': [

testing/buildbot/waterfalls.pyl

@@ -843,6 +843,7 @@
         ],
         'test_suites': {
           'gtest_tests': 'chromium_android_gtests',
+          'junit_tests': 'android_build_junit_tests',
         },
         'os_type': 'android',
       },