Update talk folder to revision=49713299.

TBR=mallinath@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1848004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4380 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/app/webrtc/webrtcsdp_unittest.cc b/talk/app/webrtc/webrtcsdp_unittest.cc
index 9c3debd..4892f58 100644
--- a/talk/app/webrtc/webrtcsdp_unittest.cc
+++ b/talk/app/webrtc/webrtcsdp_unittest.cc
@@ -1240,7 +1240,7 @@
   int position = 0;
   for (size_t i = 0; i < string1.length() && i < string2.length(); ++i) {
     if (string1.c_str()[i] != string2.c_str()[i]) {
-      position = i;
+      position = static_cast<int>(i);
       break;
     }
   }