cef/patch/patches/gn_config.patch

diff --git .gn .gn
index 01b2f70c1378..a14dd637774e 100644
--- .gn
+++ .gn
@@ -190,6 +190,8 @@ exec_script_whitelist =
 
       "//chrome/android/webapk/shell_apk/prepare_upload_dir/BUILD.gn",
 
+      "//cef/BUILD.gn",
+
       # TODO(dgn): Layer violation but breaks the build otherwise, see
       # https://crbug.com/474506.
       "//clank/java/BUILD.gn",
diff --git BUILD.gn BUILD.gn
index 6df566bd7df4..d8f539493342 100644
--- BUILD.gn
+++ BUILD.gn
@@ -16,6 +16,7 @@ import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/gn_logs.gni")
 import("//build/util/generate_wrapper.gni")
+import("//cef/libcef/features/features.gni")
 import("//chrome/browser/buildflags.gni")
 import("//chrome/browser/media/router/features.gni")
 import("//components/nacl/features.gni")
@@ -247,6 +248,9 @@ group("gn_all") {
       "//media/cast:cast_unittests",
       "//third_party/catapult/telemetry:bitmaptools($host_toolchain)",
     ]
+    if (enable_cef) {
+      deps += [ "//cef" ]
+    }
   } else if (is_ios) {
     deps += [
       "//ios:all",
diff --git build/config/win/visual_studio_version.gni build/config/win/visual_studio_version.gni
index 982fbe8d3f0d..e757be4688f1 100644
--- build/config/win/visual_studio_version.gni
+++ build/config/win/visual_studio_version.gni
@@ -12,9 +12,8 @@ declare_args() {
   # Currently always "2015".
   visual_studio_version = ""
 
-  # Directory of the Windows driver kit. If visual_studio_path is empty, this
-  # will be auto-filled.
-  wdk_path = ""
+  # Path to Visual Studio runtime libraries.
+  visual_studio_runtime_dirs = ""
 
   # Full path to the Windows SDK, not including a backslash at the end.
   # This value is the default location, override if you have a different
@@ -28,12 +27,11 @@ if (visual_studio_path == "") {
   visual_studio_path = toolchain_data.vs_path
   windows_sdk_path = toolchain_data.sdk_path
   visual_studio_version = toolchain_data.vs_version
-  wdk_path = toolchain_data.wdk_dir
   visual_studio_runtime_dirs = toolchain_data.runtime_dirs
 } else {
   assert(visual_studio_version != "",
          "You must set the visual_studio_version if you set the path")
-  assert(wdk_path != "",
-         "You must set the wdk_path if you set the visual studio path")
-  visual_studio_runtime_dirs = []
+  assert(visual_studio_runtime_dirs != "",
+         "You must set the visual_studio_runtime_dirs if you set the visual " +
+         "studio path")
 }
diff --git chrome/app/framework.order chrome/app/framework.order
index 839144aa1e9b..29c8ab32398a 100644
--- chrome/app/framework.order
+++ chrome/app/framework.order
@@ -28,3 +28,8 @@ _ChromeMain
 _lprofDirMode
 ___llvm_profile_filename
 ___llvm_profile_raw_version
+
+# Symbols exported for CEF.
+_OBJC_CLASS_$_UnderlayOpenGLHostingWindow
+_OBJC_METACLASS_$_UnderlayOpenGLHostingWindow
+
diff --git chrome/chrome_paks.gni chrome/chrome_paks.gni
index 63e7ca2c10c1..14f777c10cd6 100644
--- chrome/chrome_paks.gni
+++ chrome/chrome_paks.gni
@@ -4,6 +4,7 @@
 
 import("//build/config/chromeos/ui_mode.gni")
 import("//build/config/locales.gni")
+import("//cef/libcef/features/features.gni")
 import("//chrome/browser/buildflags.gni")
 import("//chrome/browser/resources/pdf/ink/ink.gni")
 import("//chrome/common/features.gni")
@@ -269,6 +270,10 @@ template("chrome_extra_paks") {
         "//chrome/browser/resources/welcome:resources",
       ]
     }
+    if (enable_cef) {
+      sources += [ "$root_gen_dir/cef/cef_resources.pak" ]
+      deps += [ "//cef:cef_resources" ]
+    }
     if (enable_extensions) {
       sources += [
         "$root_gen_dir/chrome/extensions_resources.pak",
diff --git chrome/chrome_repack_locales.gni chrome/chrome_repack_locales.gni
index a64a23560460..b08eee1f789a 100644
--- chrome/chrome_repack_locales.gni
+++ chrome/chrome_repack_locales.gni
@@ -6,6 +6,7 @@ import("//build/config/chrome_build.gni")
 import("//build/config/chromeos/ui_mode.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
+import("//cef/libcef/features/features.gni")
 import("//extensions/buildflags/buildflags.gni")
 import("//tools/grit/repack.gni")
 
@@ -83,6 +84,10 @@ template("chrome_repack_locales") {
       ]
       compress = true
     }
+    if (enable_cef) {
+      source_patterns += [ "${root_gen_dir}/cef/cef_strings_" ]
+      deps += [ "//cef:cef_strings" ]
+    }
     if (enable_extensions) {
       source_patterns +=
           [ "${root_gen_dir}/extensions/strings/extensions_strings_" ]
diff --git chrome/installer/mini_installer/BUILD.gn chrome/installer/mini_installer/BUILD.gn
index ae43217ef207..2f0b95687263 100644
--- chrome/installer/mini_installer/BUILD.gn
+++ chrome/installer/mini_installer/BUILD.gn
@@ -6,6 +6,7 @@ import("//build/config/compiler/compiler.gni")
 import("//build/config/features.gni")
 import("//build/config/python.gni")
 import("//build/config/ui.gni")
+import("//cef/libcef/features/features.gni")
 import("//chrome/process_version_rc_template.gni")
 import("//components/nacl/features.gni")
 import("//third_party/ffmpeg/ffmpeg_options.gni")
@@ -122,11 +123,13 @@ python2_action("mini_installer_archive") {
   inputs = [
     "$root_out_dir/chrome.dll",
     "$root_out_dir/chrome.exe",
-    "$root_out_dir/locales/en-US.pak",
     "$root_out_dir/setup.exe",
     "//chrome/tools/build/win/makecab.py",
     release_file,
   ]
+  if (!enable_cef) {
+    inputs += [ "$root_out_dir/locales/en-US.pak" ]
+  }
 
   outputs = [
     # See also chrome.packed.7z conditionally added below.