Update to Chromium revision d483fb77 (#474934)

- CefLifeSpanHandler::OnBeforePopup is now called on the UI thread.
- Remove CefBrowserSettings.javascript_open_windows which is no
  longer supported.

patch/patches/gn_config.patch

@@ -1,8 +1,8 @@
 diff --git .gn .gn
-index cd7ed79..0c318f9 100644
+index c91f911..bd906bc 100644
 --- .gn
 +++ .gn
-@@ -257,6 +257,8 @@ exec_script_whitelist =
+@@ -261,6 +261,8 @@ exec_script_whitelist =
        # in the Chromium repo outside of //build.
        "//build_overrides/build.gni",
  
@@ -12,11 +12,11 @@ index cd7ed79..0c318f9 100644
        # https://crbug.com/474506.
        "//clank/java/BUILD.gn",
 diff --git BUILD.gn BUILD.gn
-index d24c2da..7f0d451 100644
+index 9429718..1f8c486 100644
 --- BUILD.gn
 +++ BUILD.gn
-@@ -158,6 +158,7 @@ group("gn_all") {
-     # and whether there should be other targets that are iOS-only and missing.
+@@ -154,6 +154,7 @@ group("gn_all") {
+   if (!is_ios && !is_fuchsia) {
      deps += [
        "//cc:cc_unittests",
 +      "//cef",
@@ -91,10 +91,10 @@ index e8b0849..0bfc676 100644
  
  
 diff --git build/vs_toolchain.py build/vs_toolchain.py
-index 90a562d..8c63b12 100755
+index bb8f96c..6902237 100755
 --- build/vs_toolchain.py
 +++ build/vs_toolchain.py
-@@ -78,11 +78,18 @@ def SetEnvironmentAndGetRuntimeDllDirs():
+@@ -79,11 +79,18 @@ def SetEnvironmentAndGetRuntimeDllDirs():
      runtime_path = os.path.pathsep.join(vs_runtime_dll_dirs)
      os.environ['PATH'] = runtime_path + os.path.pathsep + os.environ['PATH']
    elif sys.platform == 'win32' and not depot_tools_win_toolchain:
@@ -114,20 +114,20 @@ index 90a562d..8c63b12 100755
      # directory in order to run binaries locally, but they are needed in order
      # to create isolates or the mini_installer. Copying them to the output
 diff --git chrome/chrome_paks.gni chrome/chrome_paks.gni
-index 4e303dc..a0398f1 100644
+index 1f9a1fc..aa69e8c 100644
 --- chrome/chrome_paks.gni
 +++ chrome/chrome_paks.gni
-@@ -249,7 +249,7 @@ template("chrome_paks") {
-       additional_source_patterns = invoker.additional_locale_source_patterns
-     }
-     input_locales = locales
--    output_dir = "${invoker.output_dir}/locales"
-+    output_dir = "${invoker.output_dir}/chrome/locales"
- 
-     if (is_mac) {
-       output_locales = locales_as_mac_outputs
+@@ -245,7 +245,7 @@ template("chrome_paks") {
+                              ])
+   
+       input_locales = locales
+-      output_dir = "${invoker.output_dir}/locales"
++      output_dir = "${invoker.output_dir}/chrome/locales"
+   
+       if (is_mac) {
+         output_locales = locales_as_mac_outputs
 diff --git chrome/installer/mini_installer/BUILD.gn chrome/installer/mini_installer/BUILD.gn
-index 5d2fe25..dd08482 100644
+index 2afab1a..c8791ea 100644
 --- chrome/installer/mini_installer/BUILD.gn
 +++ chrome/installer/mini_installer/BUILD.gn
 @@ -128,7 +128,7 @@ template("generate_mini_installer") {