NOT FOR REVIEW: Aura on Android

build/config/features.gni

Index: build/config/features.gni
diff --git a/build/config/features.gni b/build/config/features.gni
index 8ca446dd43d9386c52977656d591e4820d447bdc..e5dcc536b359280f52922be0a2c0e3928c8fbea8 100644
--- a/build/config/features.gni
+++ b/build/config/features.gni
@@ -23,7 +23,7 @@ declare_args() {
   # Multicast DNS.
   enable_mdns = is_win || is_linux
 
-  enable_plugins = !is_android && !is_ios
+  enable_plugins = !is_ios
 
   # Enables Native Client support.
   # TODO(GYP): Get NaCl linking on other platforms.
@@ -51,7 +51,7 @@ declare_args() {
   enable_webrtc = !is_ios && !is_mac && !is_android
 
   # Enables the Media Router.
-  enable_media_router = !is_ios
+  enable_media_router = !is_ios && !is_android
 
   # Enables proprietary codecs and demuxers; e.g. H264, MOV, AAC, and MP3.
   # Android OS includes support for proprietary codecs regardless of building
@@ -64,13 +64,13 @@ declare_args() {
   enable_configuration_policy = !is_ios
 
   # Enables support for background apps.
-  enable_background = !is_ios && !is_android
+  enable_background = !is_ios && (!is_android || use_aura)
 
   enable_captive_portal_detection = !is_android && !is_ios
 
   # Enables use of the session service, which is enabled by default.
   # Android stores them separately on the Java side.
-  enable_session_service = !is_android && !is_ios
+  enable_session_service = (!is_android || use_aura) && !is_ios
 
   enable_plugin_installation = is_win || is_mac
 
@@ -163,13 +163,13 @@ enable_web_speech = !is_android && !is_ios
 
 use_dbus = is_linux
 
-enable_extensions = !is_android && !is_ios
+enable_extensions = !is_ios
 
 enable_task_manager = !is_ios && !is_android
 
 use_cups = is_desktop_linux || is_mac
 
-enable_themes = !is_android && !is_ios
+enable_themes = (!is_android && !is_ios) || (is_android && use_aura)
 
 # TODO(scottmg) remove this when we've fixed printing.
 win_pdf_metafile_for_printing = true