Centralize mojo edk initialization path for some unit tests.

third_party/WebKit/Source/platform/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("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
@@ skipping 1890 matching lines @@
   visibility = []  # Allow re-assignment of list.
   visibility = [ "*" ]
   sources = [
     "testing/BlinkFuzzerTestSupport.cpp",
     "testing/BlinkFuzzerTestSupport.h",
   ]
   deps = [
     ":platform",
     ":test_support",
     "//content/test:test_support",
-    "//mojo/edk/system:system",
   ]
 }
 
 # Fuzzer for blink::MHTMLParser.
 fuzzer_test("mhtml_parser_fuzzer") {
   sources = [
     "mhtml/MHTMLFuzzer.cpp",
   ]
   deps = [
     ":blink_common",
@@ skipping 58 matching lines @@
     "//third_party/WebKit/Source:inside_blink",
   ]
 
   deps = [
     ":test_support",
     "//cc/surfaces:surface_id",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }