more content exports needed for unit_tests and browser_tests.

content/renderer/p2p/p2p_transport_impl.h

Index: content/renderer/p2p/p2p_transport_impl.h
diff --git a/content/renderer/p2p/p2p_transport_impl.h b/content/renderer/p2p/p2p_transport_impl.h
index 82072b137ca2dd8cd652c90b404ea66837c412b7..d4d1baa74c7401ebe03da6282e1fb5a27a9b463c 100644
--- a/content/renderer/p2p/p2p_transport_impl.h
+++ b/content/renderer/p2p/p2p_transport_impl.h
@@ -8,7 +8,9 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
 #include "net/base/completion_callback.h"
 #include "third_party/libjingle/source/talk/base/sigslot.h"
 #include "webkit/glue/p2p_transport.h"
@@ -36,8 +38,9 @@ namespace content {
 class P2PPortAllocator;
 class P2PSocketDispatcher;
 
-class P2PTransportImpl : public webkit_glue::P2PTransport,
-                         public sigslot::has_slots<> {
+class CONTENT_EXPORT P2PTransportImpl
+    : NON_EXPORTED_BASE(public webkit_glue::P2PTransport),
+      public sigslot::has_slots<> {
  public:
   // Creates P2PTransportImpl using specified NetworkManager and
   // PacketSocketFactory. Takes ownership of |network_manager| and