Reset Bluetooth EventHandler when it is invalid

chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc

Index: chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc
diff --git a/chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc b/chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc
index f24e4a9585052940e792715b24895e1c1dd04303..e080a3ef5ef6b66564d141cf40d598be209e4567 100644
--- a/chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc
+++ b/chrome/browser/ui/bluetooth/bluetooth_chooser_desktop.cc
@@ -13,7 +13,9 @@ BluetoothChooserDesktop::BluetoothChooserDesktop(
   DCHECK(bluetooth_chooser_controller_);
 }
 
-BluetoothChooserDesktop::~BluetoothChooserDesktop() {}
+BluetoothChooserDesktop::~BluetoothChooserDesktop() {
+  bluetooth_chooser_controller_->ResetEventHandler();

[Jeffrey Yasskin, 2016/08/05 20:37:51]

Comment here that this satisfies the WebContentsDelegate:: RunBluetoothChooser()
requirement that the EventHandler can be destroyed any time after the
BluetoothChooser instance.

[juncai, 2016/08/05 22:51:58]

Done.

+}
 
 void BluetoothChooserDesktop::SetAdapterPresence(AdapterPresence presence) {
   bluetooth_chooser_controller_->OnAdapterPresenceChanged(presence);