[Autofill] Adds flag for mobile-friendly disambiguation.

Also, puts some constants into abc order.

Screenshot of chrome://flags
https://screenshot.googleplex.com/oJA8CPpOyiT

Bug: 957426
Change-Id: Iade0d69263fa77d5ff492a318b06fa6b13ec70de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1587164
Commit-Queue: Caitlin Fischer <[email protected]>
Reviewed-by: Fabio Tirelo <[email protected]>
Cr-Commit-Position: refs/heads/master@{#655580}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index 025de20..a6cd85d 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -3888,11 +3888,19 @@
      kOsDesktop,
      FEATURE_VALUE_TYPE(
          autofill::features::kAutofillDoNotMigrateUnsupportedLocalCards)},
-
     {"enable-unsafe-webgpu", flag_descriptions::kUnsafeWebGPUName,
      flag_descriptions::kUnsafeWebGPUDescription, kOsMac,
      SINGLE_VALUE_TYPE(switches::kEnableUnsafeWebGPU)},
 
+#if defined(OS_ANDROID)
+    {"autofill-use-mobile-label-disambiguation",
+     flag_descriptions::kAutofillUseMobileLabelDisambiguationName,
+     flag_descriptions::kAutofillUseMobileLabelDisambiguationDescription,
+     kOsAndroid,
+     FEATURE_VALUE_TYPE(
+         autofill::features::kAutofillUseMobileLabelDisambiguation)},
+#endif  // defined(OS_ANDROID)
+
     // NOTE: Adding a new flag requires adding a corresponding entry to enum
     // "LoginCustomFlags" in tools/metrics/histograms/enums.xml. See "Flag
     // Histograms" in tools/metrics/histograms/README.md (run the