[Android] Generate scripts at build time to run android tests.

media/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 548 matching lines @@
     "//media/test:pipeline_integration_tests",
     "//skia",  # Direct dependency required to inherit config.
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/widevine/cdm:version_h",
     "//ui/gfx:test_support",
     "//url",
   ]
 
   if (is_android) {
+    isolate_file = "media_unittests.isolate"
     deps += [
       "//media/base/android",
       # TODO(GYP)
       #"//testing/android/native_test:native_test_native_code"
     ]
   }
 
   if (media_use_ffmpeg) {
     sources += [
       "ffmpeg/ffmpeg_common_unittest.cc",
@@ skipping 72 matching lines @@
     "//media/base:test_support",
     "//media/test:pipeline_integration_perftests",
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
     "//third_party/widevine/cdm:version_h",
     "//ui/gfx:test_support",
   ]
   if (is_android) {
     deps += [ "//ui/gl" ]
+    isolate_file = "media_perftests.isolate"
   }
   if (media_use_ffmpeg) {
     deps += [ "//third_party/ffmpeg" ]  # Direct dependency required to inherit config.
   }
 }
 
 # For running the subset of media_unittests that might require audio hardware
 # separately on GPU bots. media_unittests includes these too.
 test("audio_unittests") {
   sources = [
@@ skipping 65 matching lines @@
       "//media/base:test_support",
       "//media/test:pipeline_integration_tests",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/ffmpeg",
       "//ui/gfx/geometry",
       "//ui/gfx:test_support",
     ]
   }
 }