opengles emulator: Fixed Windows renderer termination

Make the event pump loop in the renderer process we do on Windows
exit when the Framebuffer's subwindow is destroyed.
Fixed TcpStream to close the socket using 'closesocket' on windows,
otherwise the other end of the socket does not sense that the socket
is closed.

+ Use WS_DISABLED to ensure that our GL subwindow doesn't receive
  any input events.

Change-Id: Icb477b3e1d7993a8880acb5e01bc5da29309ae50

tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.cpp

@@ -91,6 +91,10 @@ void FrameBuffer::finalize(){
         s_egl.eglMakeCurrent(s_theFrameBuffer->m_eglDisplay, NULL, NULL, NULL);
         s_egl.eglDestroySurface(s_theFrameBuffer->m_eglDisplay,s_theFrameBuffer->m_eglSurface);
         s_egl.eglDestroyContext(s_theFrameBuffer->m_eglDisplay,s_theFrameBuffer->m_eglContext);
+        if (s_theFrameBuffer->m_subWin) {
+            destroySubWindow(s_theFrameBuffer->m_subWinDisplay,
+                             s_theFrameBuffer->m_subWin);
+        }
         delete s_theFrameBuffer;
         s_theFrameBuffer = NULL;
     }