Deduplicate Monochrome locale .paks

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 6461d76826efa245ffa8394dd215028ea1f5938e..fe8693e156898fba85c5b7c82e9904252f18e0b0 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -2795,6 +2795,12 @@ void ChromeContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
   fd = ui::GetLocalePackFd(&region);
   mappings->ShareWithRegion(kAndroidLocalePakDescriptor, fd, region);
 
+  // Optional secondary locale .pak file.
+  fd = ui::GetSecondaryLocalePackFd(&region);
+  if (fd != -1) {
+    mappings->ShareWithRegion(kAndroidSecondaryLocalePakDescriptor, fd, region);
+  }
+
   breakpad::CrashDumpObserver::GetInstance()->BrowserChildProcessStarted(
       child_process_id, mappings);