diff --git a/tools/metrics/histograms/metadata/extensions/enums.xml b/tools/metrics/histograms/metadata/extensions/enums.xml
index c36ba9e58148d..fbc5eefb3a231 100644
--- a/tools/metrics/histograms/metadata/extensions/enums.xml
+++ b/tools/metrics/histograms/metadata/extensions/enums.xml
@@ -2843,6 +2843,31 @@ Called by update_extension_histograms.py.-->
       label="ACCESSIBILITY_PRIVATE_PROCESSPENDINGSPOKENFEEDBACKEVENT"/>
   <int value="1950"
       label="ACCESSIBILITY_PRIVATE_ENABLESPOKENFEEDBACKMV3KEYHANDLING"/>
+  <int value="1951" label="BROWSER_OS_GETACCESSIBILITYTREE"/>
+  <int value="1952" label="BROWSER_OS_GETINTERACTIVESNAPSHOT"/>
+  <int value="1953" label="BROWSER_OS_CLICK"/>
+  <int value="1954" label="BROWSER_OS_INPUTTEXT"/>
+  <int value="1955" label="BROWSER_OS_CLEAR"/>
+  <int value="1956" label="BROWSER_OS_GETPAGELOADSTATUS"/>
+  <int value="1957" label="BROWSER_OS_SCROLLUP"/>
+  <int value="1958" label="BROWSER_OS_SCROLLDOWN"/>
+  <int value="1959" label="BROWSER_OS_SCROLLTONODE"/>
+  <int value="1960" label="BROWSER_OS_SENDKEYS"/>
+  <int value="1961" label="BROWSER_OS_GETPAGESTRUCTURE"/>
+  <int value="1962" label="BROWSER_OS_CAPTURESCREENSHOT"/>
+  <int value="1963" label="BROWSER_OS_GETSNAPSHOT"/>
+  <int value="1964" label="BROWSER_OS_GETPREF"/>
+  <int value="1965" label="BROWSER_OS_SETPREF"/>
+  <int value="1966" label="BROWSER_OS_GETALLPREFS"/>
+  <int value="1967" label="BROWSER_OS_LOGMETRIC"/>
+  <int value="1968" label="BROWSER_OS_GETVERSIONNUMBER"/>
+  <int value="1969" label="BROWSER_OS_EXECUTEJAVASCRIPT"/>
+  <int value="1970" label="BROWSER_OS_CLICKCOORDINATES"/>
+  <int value="1971" label="BROWSER_OS_TYPEATCOORDINATES"/>
+  <int value="1972" label="SIDEPANEL_BROWSEROSTOGGLE"/>
+  <int value="1973" label="SIDEPANEL_BROWSEROSISOPEN"/>
+  <int value="1974" label="BROWSER_OS_GETBROWSEROSVERSIONNUMBER"/>
+  <int value="1975" label="BROWSER_OS_CHOOSEPATH"/>
 </enum>
 
 <!-- LINT.ThenChange(//extensions/browser/extension_function_histogram_value.h:HistogramValue) -->
