Fix public dependencies on //ipc

components/subresource_filter/content/renderer/BUILD.gn

 # Copyright 2016 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.
 
 static_library("renderer") {
   sources = [
     "subresource_filter_agent.cc",
     "subresource_filter_agent.h",
     "unverified_ruleset_dealer.cc",
     "unverified_ruleset_dealer.h",
     "web_document_subresource_filter_impl.cc",
     "web_document_subresource_filter_impl.h",
   ]
   deps = [
     "//base",
     "//components/subresource_filter/content/common",
     "//components/subresource_filter/core/common",
     "//content/public/common",
     "//content/public/renderer",
-    "//ipc",
     "//third_party/WebKit/public:blink",
     "//url",
   ]
+  public_deps = [
+    "//ipc",
+  ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
     "subresource_filter_agent_unittest.cc",
   ]
   deps = [
     ":renderer",
     "//base",
     "//base/test:test_support",
     "//components/subresource_filter/content/common",
     "//components/subresource_filter/core/common",
     "//components/subresource_filter/core/common:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/WebKit/public:blink",
     "//url",
   ]
 }