Revert of Deletes mojo::Callback

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/ui.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/platform/platform.gni")
 import("//third_party/WebKit/Source/platform/platform_generated.gni")
@@ skipping 343 matching lines @@
     "//third_party/libpng",
     "//third_party/libwebp",
     "//third_party/ots",
     "//third_party/qcms",
     "//url",
     "//v8",
   ]
   deps = [
     ":blink_common",
     "//components/link_header_util:link_header_util",
-    "//mojo/public/cpp/bindings",
+    "//mojo/public/cpp/bindings:callback",
     "//mojo/public/cpp/bindings:wtf_support",
     "//third_party/WebKit/Source/platform/heap",
     "//third_party/harfbuzz-ng",
     "//third_party/icu",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   if (is_mac) {
     sources -= [
@@ skipping 246 matching lines @@
 }
 
 if (current_cpu == "x86" || current_cpu == "x64") {
   source_set("blink_x86_sse") {
     sources = blink_platform_sse_files
     deps = [
       ":blink_common",
     ]
   }
 }