GN: Enable blink and (nearly) all of content in android build

content/app/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.
 
 content_app_sources = [
   "android/app_jni_registrar.cc",
   "android/app_jni_registrar.h",
   "android/child_process_service.cc",
   "android/child_process_service.h",
   "android/content_main.cc",
@@ skipping 19 matching lines @@
   "//ui/base",
   "//ui/gfx",
   "//ui/gfx/geometry",
 ]
 
 if (is_win) {
   content_app_deps += [ "//sandbox" ]
 } else if (is_android) {
   content_app_sources -= [ "content_main.cc" ]
   content_app_deps += [
-    "//content:content_jni_headers",
+    "//content/public/android:jni",
     "//skia",
     "//third_party/android_tools:cpu_features"
   ]
 }
 
 if (is_ios) {
   content_app_sources -= [
     "content_main.cc",
     "mojo/mojo_init.cc",
     "mojo/mojo_init.h",
@@ skipping 57 matching lines @@
     }
   }
 
   # Includes both browser and child process app sources.
   source_set("both") {
     sources = content_app_sources
     configs += content_app_extra_configs
     deps = content_app_deps
   }
 }