Update deps in WebKit/public to reflect actual usage

third_party/WebKit/public/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/buildflag_header.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 607 matching lines @@
     "//third_party/icu:icu_config",
   ]
 
   public_deps = [
     "//skia",
     "//url",
   ]
 
   deps = [
     ":generate_mojo_bindings",
+    "//base:base",
+    "//cc:cc",
+    "//cc/paint:paint",
+    "//cc/surfaces:surface_id",
+    "//device/screen_orientation/public/interfaces:interfaces_shared_cpp_sources",
+    "//media/midi:mojo_shared_cpp_sources",
+    "//mojo/public/cpp/bindings:bindings",
+    "//mojo/public/cpp/system:system",
+    "//v8:v8_headers",
   ]
 }
 
 group("blink_devtools_frontend_resources") {
   public_deps = [
     "//third_party/WebKit/Source/devtools:devtools_frontend_resources",
   ]
 }
 
 group("blink_devtools_frontend_resources_files") {
@@ skipping 147 matching lines @@
 # Some mojom typemaps are shared between Chromium and Blink variants and
 # therefore require some shared traits implementation. These definitions are
 # relegated to a separate target to avoid duplication between the variants.
 source_set("shared_typemap_traits") {
   visibility = [ ":*" ]
   sources = [
     "web/ConsoleMessageStructTraits.cpp",
     "web/ConsoleMessageStructTraits.h",
   ]
   deps = [
+    ":blink_headers",
     ":mojo_bindings_shared__generator",
+    "//mojo/public/cpp/bindings:struct_traits",
   ]
 }