Add the "is_ensemble" build variable.

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 104 matching lines @@
     "filters/decrypting_video_decoder.cc",
     "filters/decrypting_video_decoder.h",
     "filters/default_media_permission.cc",
     "filters/default_media_permission.h",
     "filters/file_data_source.cc",
     "filters/file_data_source.h",
     "filters/frame_processor.cc",
     "filters/frame_processor.h",
     "filters/gpu_video_accelerator_factories.cc",
     "filters/gpu_video_accelerator_factories.h",
-    "filters/gpu_video_decoder.cc",
-    "filters/gpu_video_decoder.h",
     "filters/h264_bit_reader.cc",
     "filters/h264_bit_reader.h",
     "filters/h264_parser.cc",
     "filters/h264_parser.h",
     "filters/jpeg_parser.cc",
     "filters/jpeg_parser.h",
     "filters/renderer_impl.cc",
     "filters/renderer_impl.h",
-    "filters/skcanvas_video_renderer.cc",
-    "filters/skcanvas_video_renderer.h",
     "filters/source_buffer_platform.cc",
     "filters/source_buffer_platform.h",
     "filters/source_buffer_range.cc",
     "filters/source_buffer_range.h",
     "filters/source_buffer_stream.cc",
     "filters/source_buffer_stream.h",
     "filters/stream_parser_factory.cc",
     "filters/stream_parser_factory.h",
     "filters/video_frame_scheduler.h",
     "filters/video_frame_scheduler_impl.cc",
@@ skipping 24 matching lines @@
     "midi/midi_port_info.cc",
     "midi/midi_port_info.h",
     "midi/usb_midi_descriptor_parser.cc",
     "midi/usb_midi_descriptor_parser.h",
     "midi/usb_midi_device.h",
     "midi/usb_midi_input_stream.cc",
     "midi/usb_midi_input_stream.h",
     "midi/usb_midi_jack.h",
     "midi/usb_midi_output_stream.cc",
     "midi/usb_midi_output_stream.h",
-    "video/capture/fake_video_capture_device.cc",
-    "video/capture/fake_video_capture_device.h",
-    "video/capture/fake_video_capture_device_factory.h",
-    "video/capture/fake_video_capture_device_factory.cc",
     "video/capture/file_video_capture_device.cc",
     "video/capture/file_video_capture_device.h",
-    "video/capture/file_video_capture_device_factory.h",
-    "video/capture/file_video_capture_device_factory.cc",
-    "video/capture/linux/video_capture_device_factory_linux.cc",
-    "video/capture/linux/video_capture_device_factory_linux.h",
     "video/capture/linux/video_capture_device_linux.cc",
     "video/capture/linux/video_capture_device_linux.h",
     "video/capture/linux/video_capture_device_chromeos.cc",
     "video/capture/linux/video_capture_device_chromeos.h",
     "video/capture/mac/platform_video_capturing_mac.h",
     "video/capture/mac/video_capture_device_avfoundation_mac.h",
     "video/capture/mac/video_capture_device_avfoundation_mac.mm",
     "video/capture/mac/video_capture_device_decklink_mac.h",
     "video/capture/mac/video_capture_device_decklink_mac.mm",
     "video/capture/mac/video_capture_device_factory_mac.h",
     "video/capture/mac/video_capture_device_factory_mac.mm",
     "video/capture/mac/video_capture_device_mac.h",
     "video/capture/mac/video_capture_device_mac.mm",
     "video/capture/mac/video_capture_device_qtkit_mac.h",
     "video/capture/mac/video_capture_device_qtkit_mac.mm",
     "video/capture/video_capture_device.cc",
     "video/capture/video_capture_device.h",
-    "video/capture/video_capture_device_factory.cc",
-    "video/capture/video_capture_device_factory.h",
     "video/capture/video_capture_device_info.cc",
     "video/capture/video_capture_device_info.h",
     "video/capture/video_capture_types.cc",
     "video/capture/video_capture_types.h",
     "video/capture/win/capability_list_win.cc",
     "video/capture/win/capability_list_win.h",
     "video/capture/win/filter_base_win.cc",
     "video/capture/win/filter_base_win.h",
     "video/capture/win/pin_base_win.cc",
     "video/capture/win/pin_base_win.h",
@@ skipping 93 matching lines @@
   if (media_use_libvpx) {
     sources += [
       "filters/vpx_video_decoder.cc",
       "filters/vpx_video_decoder.h",
     ]
     deps += [ "//third_party/libvpx" ]
   }
 
   if (!is_android) {
     sources += [
-      "filters/default_renderer_factory.cc",
-      "filters/default_renderer_factory.h",
       "filters/opus_audio_decoder.cc",
       "filters/opus_audio_decoder.h",
     ]
+    if (!is_ensemble) {

[DaleCurtis, 2015/02/12 02:33:42]

Why nest?

[wtc, 2015/02/12 15:20:31]

In the original code, "filters/opus_audio_decoder.cc" and
"filters/opus_audio_decoder.h" are only added if is_android is false.

Would you like me to add these two files in a standalone if block?

  if (!is_android) {
    sources += [
      "filters/opus_audio_decoder.cc",
      "filters/opus_audio_decoder.h",
    ]
  } else {
    ...
  }
  if (!is_android && !is_ensemble) {
    sources += [
      "filters/default_renderer_factory.cc",
      "filters/default_renderer_factory.h",
    ]
  }
  
Or would you like me to add an "if (!is_android)" block nested inside the big
"if (!is_ensemble)" block below?

  if (!is_ensemble) {
    sources += [
      "filters/gpu_video_decoder.cc",
      "filters/gpu_video_decoder.h",
      ...
    ]
    if (!is_android) {
      sources += [
        "filters/default_renderer_factory.cc",
        "filters/default_renderer_factory.h",
      ]
    }
    deps += [
      "//skia",
      ...
    ]
  }

[DaleCurtis, 2015/02/12 19:19:12]

I see. What you have is fine then.

+      sources += [
+        "filters/default_renderer_factory.cc",
+        "filters/default_renderer_factory.h",
+      ]
+    }
   } else {
     sources += [
       "midi/midi_manager_android.cc",
       "midi/usb_midi_device_android.cc",
       "midi/usb_midi_device_android.h",
       "midi/usb_midi_device_factory_android.cc",
       "midi/usb_midi_device_factory_android.h",
       "video/capture/android/video_capture_device_android.cc",
       "video/capture/android/video_capture_device_android.h",
       "video/capture/android/video_capture_device_factory_android.cc",
@@ skipping 135 matching lines @@
   ]
 
   deps += [
     ":shared_memory_support",
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//crypto",
     "//crypto:platform",  # TODO(ajwong): This used to be provided by crypto.gyp via export_dependent_settings
     "//gpu/command_buffer/common",
-    "//skia",
     "//third_party/libyuv",
     "//third_party/opus",
-    "//ui/events:events_base",
-    "//ui/gfx",
     "//ui/gfx/geometry",
     "//url",
   ]
+
+  # Add source files and dependencies that need X11, font, or graphics
+  # libraries.
+  if (!is_ensemble) {
+    sources += [
+      "filters/gpu_video_decoder.cc",
+      "filters/gpu_video_decoder.h",
+      "filters/skcanvas_video_renderer.cc",
+      "filters/skcanvas_video_renderer.h",
+      "video/capture/fake_video_capture_device.cc",
+      "video/capture/fake_video_capture_device.h",
+      "video/capture/fake_video_capture_device_factory.cc",
+      "video/capture/fake_video_capture_device_factory.h",
+      "video/capture/file_video_capture_device_factory.cc",
+      "video/capture/file_video_capture_device_factory.h",
+      "video/capture/linux/video_capture_device_factory_linux.cc",
+      "video/capture/linux/video_capture_device_factory_linux.h",
+      "video/capture/video_capture_device_factory.cc",
+      "video/capture/video_capture_device_factory.h",
+    ]
+
+    deps += [
+      "//skia",
+      "//ui/events:events_base",
+      "//ui/gfx",
+    ]
+  }
 }
 
 # Minimal media component for media/cast on iOS.
 if (is_ios) {
   component("media_for_cast_ios") {
     configs += [ ":media_config" ]
     all_dependent_configs = [ ":media_dependent_config" ]
     include_dirs = [ "." ]
     libs = [ "CoreVideo.framework" ]
 
@@ skipping 275 matching lines @@
     deps = [
       ":media",
       ":shared_memory_support",
       "//base",
       "//ui/gl",
       "//ui/gfx",
       "//ui/gfx/geometry",
     ]
   }
 }