Delete CC.

cc/base/BUILD.gn

Index: cc/base/BUILD.gn
diff --git a/cc/base/BUILD.gn b/cc/base/BUILD.gn
deleted file mode 100644
index b9a803c355ac1d39669c7eb91bc0a517b8a6a36b..0000000000000000000000000000000000000000
--- a/cc/base/BUILD.gn
+++ /dev/null
@@ -1,35 +0,0 @@
-# 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.
-
-source_set("base") {
-  visibility = [ "//cc" ]
-
-  sources = [
-    "blocking_task_runner.cc",
-    "blocking_task_runner.h",
-    "completion_event.h",
-    "math_util.cc",
-    "math_util.h",
-    "scoped_ptr_deque.h",
-    "scoped_ptr_vector.h",
-    "switches.cc",
-    "switches.h",
-    "util.h",
-  ]
-
-  deps = [
-    "//base",
-    "//base/third_party/dynamic_annotations",
-    "//skia",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-  ]
-
-  defines = [ "CC_IMPLEMENTATION=1" ]
-
-  if (!is_debug && (is_win || is_android)) {
-    configs -= [ "//build/config/compiler:optimize" ]
-    configs += [ "//build/config/compiler:optimize_max" ]
-  }
-}