Make Blink internal parts private dependencies.

components/webcrypto/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.
 
 import("//testing/test.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 source_set("webcrypto") {
   sources = [
     "algorithm_dispatch.cc",
@@ skipping 89 matching lines @@
 # dependencies).
 source_set("fuzzer_support") {
   testonly = true
 
   sources = [
     "fuzzer_support.cc",
     "fuzzer_support.h",
   ]
   deps = [
     ":webcrypto",
+    "//base",
     "//crypto",
     "//crypto:platform",
     "//third_party/WebKit/public:blink",
 
     # This contains a helper function for initializing Blink (needed for
     # PartitionAlloc initialization).
     "//components/test_runner:test_runner",
   ]
 }
 
@@ skipping 37 matching lines @@
 fuzzer_test("webcrypto_rsa_import_key_spki_fuzzer") {
   sources = [
     "rsa_import_key_pkcs8_fuzzer.cc",
   ]
   deps = [
     ":fuzzer_support",
     ":webcrypto",
     "//third_party/WebKit/public:blink_headers",
   ]
 }