Remove content/public/plugin and chrome/plugin

chrome/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.
 
 import("//tools/grit/grit_rule.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
   android_generated_java_resources = [
     "java/res/values-am/generated_resources.xml",
@@ skipping 307 matching lines @@
     "chrome_main_delegate.cc",
     "chrome_main_delegate.h",
   ]
 
   deps = [
     "//base",
     "//chrome/browser",
     "//chrome/browser/policy:path_parser",
     "//chrome/child",
     "//chrome/common",
-    "//chrome/plugin",
     "//chrome/renderer",
     "//chrome/utility",
     "//components/crash/content/app",
     "//components/crash/content/app:lib",
     "//components/startup_metric_utils/browser:lib",
     "//content/public/app:both",
     "//content/public/common",
     "//ui/base",
   ]
 
@@ skipping 18 matching lines @@
     deps += [ "//pdf" ]
   }
 
   if (enable_plugins && enable_nacl) {
     deps += [
       "//components/nacl/browser",
       "//components/nacl/renderer/plugin:nacl_trusted_plugin",
     ]
   }
 }