Switch from build-time to run-time flags for Project Spitzer.

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 40 matching lines @@
   }
   if (is_win) {
     ldflags = [
       "/DELAYLOAD:mf.dll",
       "/DELAYLOAD:mfplat.dll",
       "/DELAYLOAD:mfreadwrite.dll",
     ]
   }
   if (media_use_ffmpeg && is_android) {
     defines += [
-      "ENABLE_MEDIA_PIPELINE_ON_ANDROID",
       "DISABLE_FFMPEG_VIDEO_DECODERS",
     ]
   }
 }
 
 if (use_ozone) {
   action("generate_ozone_constructor_list") {
     # Ozone platform objects are auto-generated using similar
     # patterns for naming and classes constructors. Here we build the
     # object MediaOzonePlatform.
@@ skipping 817 matching lines @@
       "//media/base:test_support",
       "//media/test:pipeline_integration_tests",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/ffmpeg",
       "//ui/gfx:test_support",
       "//ui/gfx/geometry",
     ]
   }
 }