Remove old wtf/ directory.

third_party/WebKit/Source/platform/heap/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("//testing/test.gni")
 
 source_set("heap") {
   # This target is a logical part of the platform and only the platform target
   # should depend on it.
   visibility = [ "//third_party/WebKit/Source/platform" ]
@@ skipping 67 matching lines @@
 test("blink_heap_unittests") {
   sources = [
     "BlinkGCMemoryDumpProviderTest.cpp",
     "HeapCompactTest.cpp",
     "HeapTest.cpp",
     "PersistentTest.cpp",
     "RunAllTests.cpp",
   ]
 
   configs += [
-    "//third_party/WebKit/Source/wtf:wtf_config",
+    "//third_party/WebKit/Source/platform/wtf:wtf_config",
     "//third_party/WebKit/Source:config",
     "//third_party/WebKit/Source:inside_blink",
   ]
 
   deps = [
     "//base",
     "//base/test:test_support",
     "//content/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/WebKit/Source/platform:test_support",
-    "//third_party/WebKit/Source/wtf",
+    "//third_party/WebKit/Source/platform/wtf",
   ]
   if (is_android) {
     deps += [
       "//base:base_java",
       "//content/shell/android:content_shell_assets",
       "//net/android:net_java",
     ]
   }
 }