Remove old wtf/ directory.

third_party/WebKit/Source/platform/loader/BUILD.gn

 # Copyright 2017 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("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/platform/platform_generated.gni")
 
 make_names("make_platform_loader_generated_fetch_initiator_type_names") {
   in_files = [ "fetch/FetchInitiatorTypeNames.json5" ]
   outputs = [
@@ skipping 105 matching lines @@
     "fetch/RawResourceTest.cpp",
     "fetch/ResourceFetcherTest.cpp",
     "fetch/ResourceLoaderOptionsTest.cpp",
     "fetch/ResourceRequestTest.cpp",
     "fetch/ResourceTest.cpp",
   ]
 
   defines = [ "INSIDE_BLINK" ]
 
   configs += [
-    "//third_party/WebKit/Source/wtf:wtf_config",
+    "//third_party/WebKit/Source/platform/wtf:wtf_config",
     "//third_party/WebKit/Source:config",
   ]
 
   deps = [
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/WebKit/Source/platform",
   ]
 }
 
@@ skipping 11 matching lines @@
     "testing/MockFetchContext.h",
     "testing/MockResource.cpp",
     "testing/MockResource.h",
     "testing/MockResourceClient.cpp",
     "testing/MockResourceClient.h",
   ]
 
   defines = [ "INSIDE_BLINK" ]
 
   configs += [
-    "//third_party/WebKit/Source/wtf:wtf_config",
+    "//third_party/WebKit/Source/platform/wtf:wtf_config",
     "//third_party/WebKit/Source:config",
   ]
 
   deps = [
     "//third_party/WebKit/Source/platform",
   ]
 }