[Android] Convert more test targets to use isolate.

media/media_unittests.isolate

Index: media/media_unittests.isolate
diff --git a/tools/android/adb_reboot/adb_reboot.gyp b/media/media_unittests.isolate
similarity index 52%
copy from tools/android/adb_reboot/adb_reboot.gyp
copy to media/media_unittests.isolate
index 85134b9906acda6865fdf72d1859d7eac139d0c3..9c691c6a8bce57e83ac3e8304e4f9fe8248bf655 100644
--- a/tools/android/adb_reboot/adb_reboot.gyp
+++ b/media/media_unittests.isolate
@@ -2,13 +2,13 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
-  'targets': [
-    {
-      'target_name': 'adb_reboot',
-      'type': 'executable',
-      'sources': [
-        'adb_reboot.c',
-      ],
-    },
+  'conditions': [
+    ['OS=="android"', {
+      'variables': {
+        'isolate_dependency_untracked': [
+          'test/data/',
+        ],
+      },
+    }],
   ],
 }