Re-submit of AppLink implementation.

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 4acd26b16aeb6345faf3b7bfe1af20ed8a05888b..0ded6e37b5af9eaac81138c236678b1df8200829 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -77339,6 +77339,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="1658644418" label="disable-app-list-voice-search"/>
   <int value="1661925474" label="silent-debugger-extension-api"/>
   <int value="1668611601" label="enable-encrypted-media"/>
+  <int value="1689123607" label="enable-app-link"/>
   <int value="1689183477" label="enable-merge-key-char-events"/>
   <int value="1694854500" label="disable-save-password-bubble"/>
   <int value="1696139514" label="enable-ble-advertising-in-apps"/>
@@ -77374,6 +77375,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="1865799183" label="javascript-harmony"/>
   <int value="1881036528" label="disable-multilingual-spellchecker"/>
   <int value="1881174782" label="disable-brotli"/>
+  <int value="1889076955" label="disable-app-link"/>
   <int value="1891210939" label="enable-blink-features"/>
   <int value="1892201400" label="enable-password-separated-signin-flow"/>
   <int value="1896456311" label="enable-password-save-in-page-navigation"/>