bluetooth: Fix layering violation in BluetoothChooserController

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 48e53f0b242d9ad8d9fa3e18d69c87245d86340c..781613dca752a95d4dbc7923984b534680952613 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -4431,6 +4431,16 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Bluetooth.Web.ChooserInteraction" enum="BooleanInvalid">
+  <owner>jyasskin@chromium.org</owner>
+  <owner>ortuno@chromium.org</owner>
+  <owner>scheib@chromium.org</owner>
+  <summary>
+    Counts how many times users interact with a regular chooser vs. an invalid
+    chooser. (A chooser is invalid when it's event handler becomes null.)
+  </summary>
+</histogram>
+
 <histogram name="Bluetooth.Web.ConnectGATT.Outcome"
     enum="WebBluetoothConnectGATTOutcome">
   <owner>jyasskin@chromium.org</owner>
@@ -70014,6 +70024,11 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1" label="Foreground"/>
 </enum>
 
+<enum name="BooleanInvalid" type="int">
+  <int value="0" label="Valid"/>
+  <int value="1" label="Invalid"/>
+</enum>
+
 <enum name="BooleanIsLastSharedAppInfoRetrieved" type="int">
   <int value="0" label="Not retrieved"/>
   <int value="1" label="Retrieved"/>