Implemented BluetoothTaskManagerWin class.

device/device.gyp

Index: device/device.gyp
diff --git a/device/device.gyp b/device/device.gyp
index 75902fc197a85882329553e0ae3556909fefd0b7..5596bb3ee4cf2d77e4a66ffc65aad0b22873d6ab 100644
--- a/device/device.gyp
+++ b/device/device.gyp
@@ -31,6 +31,8 @@
         'bluetooth/bluetooth_device_win.cc',
         'bluetooth/bluetooth_device_win.h',
         'bluetooth/bluetooth_out_of_band_pairing_data.h',
+        'bluetooth/bluetooth_polling_thread_win.cc',
+        'bluetooth/bluetooth_polling_thread_win.h',
         'bluetooth/bluetooth_service_record.cc',
         'bluetooth/bluetooth_service_record.h',
         'bluetooth/bluetooth_socket.h',
@@ -38,6 +40,8 @@
         'bluetooth/bluetooth_socket_chromeos.h',
         'bluetooth/bluetooth_socket_win.cc',
         'bluetooth/bluetooth_socket_win.h',
+        'bluetooth/bluetooth_task_manager_win.cc',
+        'bluetooth/bluetooth_task_manager_win.h',
         'bluetooth/bluetooth_utils.cc',
         'bluetooth/bluetooth_utils.h',
       ],
@@ -49,6 +53,11 @@
             '../dbus/dbus.gyp:dbus',
           ]
         }],
+        ['OS=="win"', {
+          'dependencies': [
+            '../content/content.gyp:content_browser',
+          ]
+        }],
       ],
     },
     {