Roll GN from e327ffdc..6f13aaac and update BUILD files.

This CL was initially generated by //tools/gn/roll_gn.py and
picks up the following changes:

https://gn.googlesource.com/gn/+log/e327ffdc..6f13aaac

    6f13aaac [visibility] Consider configs in visibility check
    5da62d5e Fix native MinGW build
    0649bd9a Add MSYS as a platform.
    501b49a3 clang: Add support for C++ modules in deps
    03df22eb [rust-project] Add "proc_macro" as dep for proc macro targets
    b489f906 Add support for Solaris and illumos systems

6f13aac is a breaking change, in that it addresses gn bug #22,
where `visibility` was not actually enforced on configs (it was
enforced only on targets); as a result, we have some visibility
violations that are now picked up with the new GN binary.

This CL fixes those violations.

Change-Id: I52b6e01f31ce64c1926e97b699b7f8a399dbf9f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2360685
Commit-Queue: Dirk Pranke <dpranke@google.com>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800616}

DEPS

@@ -368,7 +368,7 @@ vars = {
   # revisions.
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:e327ffdc503815916db2543ec000226a8df45163',
+  'gn_version': 'git_revision:6f13aaac55a977e1948910942675c69f2b4f7a94',
 
   # Also, if you change these, update buildtools/DEPS too. Also update the
   # libc++ svn_revision in //buildtools/deps_revisions.gni.

build/config/ios/rules.gni

@@ -1256,6 +1256,11 @@ template("ios_framework_bundle") {
   _default_toolchain_root_out_dir =
       get_label_info("$_target_name($default_toolchain)", "root_out_dir")
 
+  _arch_shared_library_source = _target_name + "_arch_shared_library_sources"
+  _arch_shared_library_target = _target_name + "_arch_shared_library"
+  _lipo_shared_library_target = _target_name + "_shared_library"
+  _link_target_name = _target_name + "+link"
+
   if (_has_public_headers) {
     _default_toolchain_target_gen_dir =
         get_label_info("$_target_name($default_toolchain)", "target_gen_dir")
@@ -1266,7 +1271,10 @@ template("ios_framework_bundle") {
     _header_map_filename =
         "$_default_toolchain_target_gen_dir/$_output_name.headers.hmap"
     config(_headers_map_config) {
-      visibility = [ ":${_target_name}_signed_bundle" ]
+      visibility = [
+        ":${_target_name}_signed_bundle",
+        ":${_arch_shared_library_source}",
+      ]
       include_dirs = [ _header_map_filename ]
     }
   }
@@ -1276,11 +1284,6 @@ template("ios_framework_bundle") {
     framework_dirs = [ _default_toolchain_root_out_dir ]
   }
 
-  _arch_shared_library_source = _target_name + "_arch_shared_library_sources"
-  _arch_shared_library_target = _target_name + "_arch_shared_library"
-  _lipo_shared_library_target = _target_name + "_shared_library"
-  _link_target_name = _target_name + "+link"
-
   _framework_public_config = _target_name + "_public_config"
   config(_framework_public_config) {
     configs = [ ":$_framework_headers_config" ]

buildtools/DEPS

@@ -14,7 +14,7 @@ vars = {
   #
 
   # GN CIPD package version.
-  'gn_version': 'git_revision:e327ffdc503815916db2543ec000226a8df45163',
+  'gn_version': 'git_revision:6f13aaac55a977e1948910942675c69f2b4f7a94',
 
   # When changing these, also update the svn revisions in deps_revisions.gni
   'clang_format_revision': '96636aa0e9f047f17447f2d45a094d0b59ed7917',

third_party/blink/renderer/platform/BUILD.gn

@@ -122,6 +122,8 @@ group("make_platform_generated") {
 import("//build/config/pch.gni")
 
 config("blink_platform_config") {
+  visibility = []
+  visibility = [ "./*" ]
   configs = [
     "//third_party/blink/renderer:config",
     "//third_party/blink/renderer:inside_blink",
@@ -199,10 +201,15 @@ buildflag_header("bindings_buildflags") {
 }
 
 config("blink_platform_implementation") {
+  visibility = []
+  visibility = [ "./*" ]
+
   defines = [ "BLINK_PLATFORM_IMPLEMENTATION=1" ]
 }
 
 config("blink_platform_pch") {
+  visibility = []
+  visibility = [ "./*" ]
   if (enable_precompiled_headers) {
     if (is_win) {
       # This is a string rather than a file GN knows about. It has to match