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 199 matching lines @@
   }
 
   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 16 matching lines @@
       ":media_sse2",
     ]
   }
 
   if (is_linux || is_win) {
     sources += [
       "keyboard_event_counter.cc",
       "keyboard_event_counter.h",
     ]
   }
+
+  if (is_ensemble) {
+    deps -= [ "//skia" ]
+  }
 }
 
 # Minimal media component for media/cast on iOS.
 config("base_for_cast_ios_dependent_config") {
   defines = [ "MEDIA_FOR_CAST_IOS" ]
 }
 
 source_set("base_for_cast_ios") {
   sources = [
     "video_frame.cc",
@@ skipping 201 matching lines @@
       if (is_posix) {
         yasm_flags += [ "-DELF" ]
         if (cpu_arch == "x64") {
           # TODO(ajwong): Why isn't this true in mac?
           yasm_flags += [ "-DPIC" ]
         }
       }
     }
   }
 }