allocator/Windows: delete the old non-unified allocator-shim

media/base/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/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 config("base_config") {
   configs = [
-    # This target uses the ALLOCATOR_SHIM define.
-    "//base/allocator:allocator_shim_define",
     "//build/config:precompiled_headers",
     "//build/config/compiler:no_size_t_to_int_warning",
     "//media:media_config",
     "//media:media_dependent_config",
     "//media:media_implementation",
   ]
 }
 
 if (is_component_build) {
   link_target_type = "source_set"
@@ skipping 243 matching lines @@
   ]
 
   allow_circular_includes_from = []
   defines = []
   public_deps = [
     "//media/base:video_facing",
     "//ppapi/features",
     "//ui/gfx:color_space",
   ]
   deps = [
+    # For BUILDFLAG(USE_ALLOCATOR_SHIM).
+    "//base/allocator:features",
     "//base/third_party/dynamic_annotations:dynamic_annotations",
     "//gpu",
     "//media:media_features",
     "//media:shared_memory_support",
     "//ppapi/features",
     "//skia",
     "//third_party/libyuv",
     "//ui/events:events_base",
     "//url:url",
   ]
@@ skipping 276 matching lines @@
 
 fuzzer_test("media_container_names_fuzzer") {
   sources = [
     "container_names_fuzzertest.cc",
   ]
   deps = [
     "//base",
     "//media",
   ]
 }