Convert some component source sets to static library

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") {
+static_library("webcrypto") {
   sources = [
     "algorithm_dispatch.cc",
     "algorithm_dispatch.h",
     "algorithm_implementation.cc",
     "algorithm_implementation.h",
     "algorithm_implementations.h",
     "algorithm_registry.cc",
     "algorithm_registry.h",
     "algorithms/aes.cc",
     "algorithms/aes.h",
@@ skipping 139 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",
   ]
 }