Add display of available bluetooth devices, and mechanism for retrieving the list.

chrome/browser/ui/webui/options/chromeos/system_options_handler.h

Index: chrome/browser/ui/webui/options/chromeos/system_options_handler.h
diff --git a/chrome/browser/ui/webui/options/chromeos/system_options_handler.h b/chrome/browser/ui/webui/options/chromeos/system_options_handler.h
index 61d451c9d0a0957cb871b92289ac2f33bd6082ea..922ff6e5cfdf1e4706d6ded41ff4147085565c2d 100644
--- a/chrome/browser/ui/webui/options/chromeos/system_options_handler.h
+++ b/chrome/browser/ui/webui/options/chromeos/system_options_handler.h
@@ -29,7 +29,27 @@ class SystemOptionsHandler : public chromeos::CrosOptionsPageUIHandler {
   // ("true" or "false").
   void AccessibilityChangeCallback(const base::ListValue* args);
 
+  // Called when the 'Enable bluetooth' checkbox value is changed.
+  // |args| will contain the checkbox checked state as a string
+  // ("true" or "false").
+  void BluetoothEnableChangeCallback(const base::ListValue* args);
+
+  // Called when the 'Find Devices' button is pressed from the
+  // Bluetooth settings.
+  // |args| will contain the list of devices currently connected
+  // devices according to the System options page.
+  void FindBluetoothDevicesCallback(const base::ListValue* args);
+
+  // Sends a notification to the Web UI of the status of a bluetooth device.
+  // |device| is the decription of the device.  The supported dictionary keys
+  // for device are "deviceName", "deviceId", "deviceType" and "deviceStatus".
+  void BluetoothDeviceNotification(const base::DictionaryValue& device);
+
  private:
+  // Simulates extracting a list of available bluetooth devices.
+  // Called when emulating ChromeOS from a desktop environment.
+  void GenerateFakeDeviceList();
+
   DISALLOW_COPY_AND_ASSIGN(SystemOptionsHandler);
 };