Add the "is_ensemble" build variable.

media/base/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/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
 
@@ skipping 164 matching lines @@
     "video_renderer.h",
     "video_rotation.h",
     "video_util.cc",
     "video_util.h",
     "wall_clock_time_source.cc",
     "wall_clock_time_source.h",
     "yuv_convert.cc",
     "yuv_convert.h",
   ]
   defines = []
-  deps = [
-    "//skia",
-  ]
+  deps = []
   libs = []
   configs += [ "//media:media_config" ]
 
+  if (!is_ensemble) {
+    deps += [ "//skia" ]
+  }
+
   if (media_use_ffmpeg) {
     sources += [
       "audio_video_metadata_extractor.cc",
       "audio_video_metadata_extractor.h",
       "container_names.cc",
       "container_names.h",
       "media_file_checker.cc",
       "media_file_checker.h",
     ]
     deps += [ "//third_party/ffmpeg" ]
   }
 
   if (enable_browser_cdms) {
     sources += [
       "browser_cdm.cc",
       "browser_cdm.h",
       "browser_cdm_factory.cc",
       "browser_cdm_factory.h",
     ]
   }
 
   if (is_android) {
     sources += [ "media_stub.cc" ]
   } else if (is_win) {
     sources += [ "media_win.cc" ]
   } else if (is_posix) {
     sources += [ "media_posix.cc" ]
   }
 
-  if (is_linux && use_x11) {
+  if (is_linux && use_x11 && !is_ensemble) {
     configs += [
       "//build/config/linux:x11",
       "//build/config/linux:xext",
 
       # TODO(ajwong): Why does xent get a separate thing in //build/config/linux:BUILD.gn
       #         "//build/config/linux:xdamage",
       #         "//build/config/linux:xfixes",
       #         "//build/config/linux:xtst",
     ]
     sources += [ "user_input_monitor_linux.cc" ]
@@ skipping 237 matching lines @@
       if (is_posix) {
         yasm_flags += [ "-DELF" ]
         if (cpu_arch == "x64") {
           # TODO(ajwong): Why isn't this true in mac?
           yasm_flags += [ "-DPIC" ]
         }
       }
     }
   }
 }