QmlJSDebugger: Merge back changes done to the files in qtdeclarative

Change-Id: I722b191035757c60ce103edf74517f5348a91955
Reviewed-on: http://codereview.qt.nokia.com/3945
Reviewed-by: Aurindam Jana <aurindam.jana@nokia.com>

src/libs/qmljsdebugclient/qpacketprotocol.h

@@ -64,6 +64,8 @@ public:
     qint64 packetsAvailable() const;
     QPacket read();
 
+    bool waitForReadyRead(int msecs = 3000);
+
     void clear();
 
     QIODevice *device();
@@ -87,6 +89,7 @@ public:
 
     void clear();
     bool isEmpty() const;
+    QByteArray data() const;
 
 protected:
     friend class QPacketProtocol;