Add compiling chrome/browser to GN build on Linux.

chrome/app/resources/BUILD.gn

Index: chrome/app/resources/BUILD.gn
diff --git a/chrome/app/resources/BUILD.gn b/chrome/app/resources/BUILD.gn
index 5a29fa3da36eaace4605755463bc6f9baf7f883b..808247253a3ce750107464baf1e1b71bf7775c03 100644
--- a/chrome/app/resources/BUILD.gn
+++ b/chrome/app/resources/BUILD.gn
@@ -9,3 +9,21 @@ import("//tools/grit/grit_rule.gni")
 grit("locale_settings") {
   source = "locale_settings.grd"
 }
+
+# GYP version: chrome/chrome_resources.gyp:platform_locale_settings
+grit("platform_locale_settings") {
+  if (is_win) {
+    source = "locale_settings_win.grd"
+  } else if (is_mac || is_ios) {
+    source = "locale_settings_mac.grd"
+  } else if (is_chromeos) {
+    if (is_chrome_branded) {
+      source = "locale_settings_google_chromeos.grd"
+    } else {
+      source = "locale_settings_chromiumos.grd"
+    }
+  } else if (is_posix) {
+    # All other posix systems just use the Linux one.
+    source = "locale_settings_linux.grd"
+  }
+}