Implemented BluetoothTaskManagerWin class.

device/bluetooth/bluetooth_adapter_win.h

Index: device/bluetooth/bluetooth_adapter_win.h
diff --git a/device/bluetooth/bluetooth_adapter_win.h b/device/bluetooth/bluetooth_adapter_win.h
index 0cad233abad3ad9484f822705659f0329f10d531..f8cfef9f072bc1da517bb1091acad68df0aa5100 100644
--- a/device/bluetooth/bluetooth_adapter_win.h
+++ b/device/bluetooth/bluetooth_adapter_win.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
@@ -15,6 +16,7 @@ namespace device {
 class BluetoothAdapterFactory;
 class BluetoothAdapterWinTest;
 class BluetoothDevice;
+class BluetoothManagerWin;
 
 class BluetoothAdapterWin : public BluetoothAdapter {
  public:
@@ -40,26 +42,34 @@ class BluetoothAdapterWin : public BluetoothAdapter {
       const BluetoothOutOfBandPairingDataCallback& callback,
       const ErrorCallback& error_callback) OVERRIDE;
 
+  // Called by BluetoothManagerWin thread to return the adapter_handle.
+  void OnAdapterHandleAvailable(HANDLE adapter_handle);
+
+  void SetBluetoothManagerForTest(BluetoothManagerWin* manager);
+
  protected:
   BluetoothAdapterWin();
   virtual ~BluetoothAdapterWin();
 
-  virtual void UpdateAdapterState();
+  virtual void UpdateAdapterState(HANDLE adapter_handle);
 
  private:
   friend class BluetoothAdapterFactory;
   friend class BluetoothAdapterWinTest;
 
-  // Obtains the default adapter info (the first bluetooth radio info found on
-  // the system) and tracks future changes to it.
+  // Starts BluetoothManagerWin thread to obtain the default adapter info.
   void TrackDefaultAdapter();
 
-  void PollAdapterState();
-
   static const int kPollIntervalMs;
 
   bool powered_;
 
+  // Holding scoped_ptr guarantees that BluetoothAdapterWin will always outlive
+  // BluetoothManagerWin thread.
+  scoped_ptr<BluetoothManagerWin> manager_;
+
+  HANDLE adapter_handle_;
+
   // NOTE: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<BluetoothAdapterWin> weak_ptr_factory_;