QUIC - Minor cleanup changes to match the internal source code.
+ Added using statements.
+ Deleted annonmous namespace and include order in congest_control area
  to match internal source code.

R=rch@chromium.org

Review URL: https://codereview.chromium.org/189403002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255632 0039d316-1c4b-4281-b951-d872f2087c98
cc: split COMMIT_STATE_FRAME_IN_PROGRESS

This cl splits COMMIT_STATE_FRAME_IN_PROGRESS into below two separate
states for more clear.
1) COMMIT_STATE_BEGIN_MAIN_FRAME_SENT
2) COMMIT_STATE_BEGIN_MAIN_FRAME_STARTED

R=brianderson@chromium.org
BUG=347398
TEST=cc_unittests

Review URL: https://codereview.chromium.org/179933003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255633 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 255633