Make Blink internal parts private dependencies.

components/scheduler/BUILD.gn

 # Copyright 2015 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.
 
 # GYP version: components/scheduler.gypi:scheduler
 component("scheduler") {
   sources = [
     "base/cancelable_closure_holder.cc",
     "base/cancelable_closure_holder.h",
     "base/enqueue_order.cc",
@@ skipping 85 matching lines @@
   deps = [
     ":common",
     "//base",
     "//cc:cc",
     "//third_party/WebKit/public:blink",
     "//ui/gfx:gfx",
   ]
 
   public_deps = [
     "//third_party/WebKit/public:blink",
+    "//v8",
   ]
 }
 
 # GYP version: components/scheduler.gypi:scheduler_common
 source_set("common") {
   sources = [
     "common/scheduler_switches.cc",
     "common/scheduler_switches.h",
   ]
 }
@@ skipping 53 matching lines @@
 
   deps = [
     "//third_party/WebKit/public:blink",
   ]
 
   public_deps = [
     ":scheduler",
     "//base",
   ]
 }