Fix libc++ dependency for linux installer

chrome/installer/linux/BUILD.gn

Index: chrome/installer/linux/BUILD.gn
diff --git a/chrome/installer/linux/BUILD.gn b/chrome/installer/linux/BUILD.gn
index 1394af3a9669a5282951fd57bc1340eacc2e48b5..b1258983886417a22c45d5eede761ef94c8b9505 100644
--- a/chrome/installer/linux/BUILD.gn
+++ b/chrome/installer/linux/BUILD.gn
@@ -200,6 +200,9 @@ group("installer_deps") {
   if (!is_chromeos) {
     public_deps += [ ":rpm_packaging_files" ]
   }
+  if (use_custom_libcxx) {
+    public_deps += [ "//buildtools/third_party/libc++" ]
+  }
 }
 
 # Creates .deb and .rpm (RPM for non-ChromeOS only) installer packages.
@@ -246,8 +249,8 @@ template("linux_package") {
     ]
   }
 
-  if (is_asan) {
-    packaging_files_binaries += [ "$root_out_dir/lib/libc++.so" ]
+  if (use_custom_libcxx) {
+    packaging_files_binaries += [ "$root_out_dir/libc++.so" ]
   }
 
   deb_target_name = "${target_name}_deb"