Bluetooth: Don't attempt a pairing for devices not supporting it.

chrome/browser/chromeos/system/ash_system_tray_delegate.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/system/ash_system_tray_delegate.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 596 matching lines @@
   }
 
   virtual void ToggleBluetoothConnection(const std::string& address) OVERRIDE {
     device::BluetoothDevice* device = bluetooth_adapter_->GetDevice(address);
     if (!device || device->IsConnecting())
       return;
     if (device->IsConnected()) {
       device->Disconnect(
           base::Bind(&base::DoNothing),
           base::Bind(&BluetoothDeviceDisconnectError));
-    } else if (device->IsPaired()) {
+    } else if (device->IsPaired() || !device->IsPairable()) {
       device->Connect(
           NULL,
           base::Bind(&base::DoNothing),

[keybuk, 2013/04/17 17:53:09]

In the BluetoothOptionsHandler patch, you change this DoNothing to
DismissDisplayAndConfirm

Why isn't that change needed here? If it's not needed here, why is it needed
over there?

[deymo, 2013/04/17 17:57:55]

The Aura shell doesn't use a pairing window in this case. The label for that
item goes to "Bluetooth Mouse: Connecting..." and if the connection succeeds,
the label goes to "Bluetooth Mouse" in bold. There's no "Conneting..." window to
dismiss.

           base::Bind(&BluetoothDeviceConnectError));
     } else {  // Show paring dialog for the unpaired device.
       BluetoothPairingDialog* dialog =
           new BluetoothPairingDialog(GetNativeWindow(), device);
       // The dialog deletes itself on close.
       dialog->Show();
     }
   }
 
   virtual bool IsBluetoothDiscovering() OVERRIDE {
@@ skipping 952 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegate);
 };
 
 }  // namespace
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new chromeos::SystemTrayDelegate();
 }
 
 }  // namespace chromeos