gentoo-overlay/www-client/chromium/files/chromium-80-unbundle-libxml.patch

diff --git a/build/linux/unbundle/libxml.gn b/build/linux/unbundle/libxml.gn
index c481bd3..3aaa1a4 100644
--- a/build/linux/unbundle/libxml.gn
+++ b/build/linux/unbundle/libxml.gn
@@ -8,11 +8,52 @@ pkg_config("system_libxml") {
   packages = [ "libxml-2.0" ]
 }
 
-static_library("libxml") {
+source_set("libxml") {
+  public_configs = [ ":system_libxml" ]
+}
+
+static_library("libxml_utils") {
+  # Do not expand this visibility list without first consulting with the
+  # Security Team.
+  visibility = [
+    ":xml_reader",
+    ":xml_writer",
+    "//base/test:test_support",
+    "//services/data_decoder:xml_parser_fuzzer",
+  ]
   sources = [
     "chromium/libxml_utils.cc",
     "chromium/libxml_utils.h",
   ]
-
   public_configs = [ ":system_libxml" ]
 }
+
+static_library("xml_reader") {
+  # Do not expand this visibility list without first consulting with the
+  # Security Team.
+  visibility = [
+    "//base/test:test_support",
+    "//components/policy/core/common:unit_tests",
+    "//services/data_decoder:*",
+    "//tools/traffic_annotation/auditor:auditor_sources",
+  ]
+  sources = [
+    "chromium/xml_reader.cc",
+    "chromium/xml_reader.h",
+  ]
+  deps = [
+    ":libxml_utils",
+  ]
+}
+
+static_library("xml_writer") {
+  # The XmlWriter is considered safe to use from any target.
+  visibility = [ "*" ]
+  sources = [
+    "chromium/xml_writer.cc",
+    "chromium/xml_writer.h",
+  ]
+  deps = [
+    ":libxml_utils",
+  ]
+}
diff --git a/third_party/libxml/chromium/libxml_utils.h b/third_party/libxml/chromium/libxml_utils.h
index ff969fa..e0f3ecd 100644
--- a/third_party/libxml/chromium/libxml_utils.h
+++ b/third_party/libxml/chromium/libxml_utils.h
@@ -6,8 +6,7 @@
 #define THIRD_PARTY_LIBXML_CHROMIUM_LIBXML_UTILS_H_
 
 #include <string>
-
-#include "third_party/libxml/src/include/libxml/xmlreader.h"
+#include <libxml/xmlreader.h>
 
 // libxml uses a global error function pointer for reporting errors.
 // A ScopedXmlErrorFunc object lets you change the global error pointer
diff --git a/third_party/libxml/chromium/xml_reader.cc b/third_party/libxml/chromium/xml_reader.cc
index 92464f4..4779290 100644
--- a/third_party/libxml/chromium/xml_reader.cc
+++ b/third_party/libxml/chromium/xml_reader.cc
@@ -7,7 +7,8 @@
 #include <vector>
 
 #include "third_party/libxml/chromium/libxml_utils.h"
-#include "third_party/libxml/src/include/libxml/xmlreader.h"
+
+#include <libxml/xmlreader.h>
 
 using internal::XmlStringToStdString;
 
diff --git a/third_party/libxml/chromium/xml_writer.cc b/third_party/libxml/chromium/xml_writer.cc
index 51fce8e..aa3a34f 100644
--- a/third_party/libxml/chromium/xml_writer.cc
+++ b/third_party/libxml/chromium/xml_writer.cc
@@ -5,7 +5,8 @@
 #include "third_party/libxml/chromium/xml_writer.h"
 
 #include "third_party/libxml/chromium/libxml_utils.h"
-#include "third_party/libxml/src/include/libxml/xmlwriter.h"
+
+#include <libxml/xmlwriter.h>
 
 XmlWriter::XmlWriter() : writer_(nullptr), buffer_(nullptr) {}