Bug 1131653: Move OPP helper classes into BluetoothOppManager namespace, r=btian

This will resolve possible naming collisions between equally named
classes in the Bluetooth namespace.

dom/bluetooth2/bluedroid/BluetoothOppManager.cpp

@@ -87,7 +87,7 @@ BluetoothOppManager::Observe(nsISupports* aSubject,
   return NS_ERROR_UNEXPECTED;
 }
 
-class SendSocketDataTask : public nsRunnable
+class BluetoothOppManager::SendSocketDataTask : public nsRunnable
 {
 public:
   SendSocketDataTask(uint8_t* aStream, uint32_t aSize)
@@ -111,7 +111,7 @@ private:
   uint32_t mSize;
 };
 
-class ReadFileTask : public nsRunnable
+class BluetoothOppManager::ReadFileTask : public nsRunnable
 {
 public:
   ReadFileTask(nsIInputStream* aInputStream,
@@ -156,7 +156,7 @@ private:
   uint32_t mAvailablePacketSize;
 };
 
-class CloseSocketTask : public Task
+class BluetoothOppManager::CloseSocketTask : public Task
 {
 public:
   CloseSocketTask(BluetoothSocket* aSocket) : mSocket(aSocket)

dom/bluetooth2/bluedroid/BluetoothOppManager.h

@@ -74,6 +74,10 @@ public:
   virtual void OnSocketDisconnect(BluetoothSocket* aSocket) MOZ_OVERRIDE;
 
 private:
+  class CloseSocketTask;
+  class ReadFileTask;
+  class SendSocketDataTask;
+
   BluetoothOppManager();
   bool Init();
   void HandleShutdown();