Ensure bitness strings aren't stripped on Android.

Bug: 1119479
Change-Id: I889ae0f4f01e5e4a79d48fca1172b920a1393a7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2363363Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799889}

chrome/browser/ui/webui/version_ui.cc

@@ -120,6 +120,16 @@ VersionUI::~VersionUI() {}
 
 // static
 int VersionUI::VersionProcessorVariation() {
+#if defined(OS_ANDROID)
+  // When building for Android, "unused" strings are removed. However, binaries
+  // of both bitnesses are stripped of strings based on string analysis of one
+  // bitness. Search the code for "generate_resource_whitelist" for more
+  // information. Therefore, make sure both the IDS_VERSION_UI_32BIT and
+  // IDS_VERSION_UI_64BIT strings are marked as always used so that they’re
+  // never stripped. https://crbug.com/1119479
+  IDS_VERSION_UI_32BIT;
+  IDS_VERSION_UI_64BIT;
+#endif  // OS_ANDROID
 #if defined(OS_MAC)
   switch (base::mac::GetCPUType()) {
     case base::mac::CPUType::kIntel: