Add experimental option for TCP FastOpen.

Use chrome.exe --enable-tcp-fastopen

BUG=none
TEST=none yet

Review URL: http://codereview.chromium.org/4039003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63913 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/net/socket/client_socket_pool_base_unittest.cc b/net/socket/client_socket_pool_base_unittest.cc
index 820b030..f8d2d1fe 100644
--- a/net/socket/client_socket_pool_base_unittest.cc
+++ b/net/socket/client_socket_pool_base_unittest.cc
@@ -81,6 +81,7 @@
   virtual void SetSubresourceSpeculation() {}
   virtual void SetOmniboxSpeculation() {}
   virtual bool WasEverUsed() const { return was_used_to_convey_data_; }
+  virtual bool UsingTCPFastOpen() const { return false; }
 
  private:
   bool connected_;