NOT FOR REVIEW: Aura on Android

ui/base/BUILD.gn

Index: ui/base/BUILD.gn
diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
index 15ad86c835b844328f628e0acf325ae16b329a6b..0a850aaa4699e3ea1780d2f31fdbccfafe50e1be 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -148,6 +148,7 @@ component("base") {
     "hit_test.h",
     "idle/idle.cc",
     "idle/idle.h",
+    "idle/idle_android.cc",
     "idle/idle_chromeos.cc",
     "idle/idle_linux.cc",
     "idle/idle_mac.mm",
@@ -553,11 +554,18 @@ component("base") {
     }
   }
 
-  if (is_android || is_ios) {
+  if ((is_android && !use_aura) || is_ios) {
     sources -= [
       "device_form_factor_desktop.cc",
       "idle/idle.cc",
       "idle/idle.h",
+      "idle/idle_android.cc",
+    ]
+  }
+
+  if (is_android && use_aura) {
+    sources -= [
+      "device_form_factor_desktop.cc",
     ]
   }
 }