Revert of Aura Android: upstream platform_util* related files

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 368 matching lines @@
       "//ui/gl",
       "//ui/resources",
       "//ui/surface",
       "//ui/web_dialogs",
       "//v8",
     ]
 
     if (toolkit_views) {
       deps += [ "//ui/views" ]
     }
-
-    if (is_android && use_aura) {
-      sources -= [
-        # Aura Android uses platform_util_aura implementation.
-        "platform_util_android.cc",
-      ]
-    }
   } else {  # iOS
     sources +=
         rebase_path(gypi_values.chrome_browser_ios_sources, ".", "//chrome")
     sources +=
         rebase_path(gypi_values.chrome_browser_google_sources, ".", "//chrome")
     deps += [ "//net" ]
     libs += [
       "CoreTelephony.framework",
       "CoreText.framework",
       "MobileCoreServices.framework",
@@ skipping 921 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }