Revert 149261 - Support SHA-256 in public key pins for HTTPS.

Revert 149261 - Support SHA-256 in public key pins for HTTPS.

Broke the compile on CrOS.  Looks like const-ness problem:
net/socket/ssl_client_socket_nss.cc: In member function 'int net::SSLClientSocketNSS::DoVerifyCertComplete(int)':
net/socket/ssl_client_socket_nss.cc:3458:error: no matching function for call to 'net::TransportSecurityState::DomainState::IsChainOfPublicKeysPermitted(std::vector<std::vector<net::HashValue, std::allocator<net::HashValue> >, std::allocator<std::vector<net::HashValue, std::allocator<net::HashValue> > > >&)'
./net/base/transport_security_state.h:94: note: candidates are: bool net::TransportSecurityState::DomainState::IsChainOfPublicKeysPermitted(const net::HashValueVector&) const


The HTTP-based Public Key Pinning Internet Draft
(tools.ietf.org/html/draft-ietf-websec-key-pinning) requires this.

Per wtc, give the *Fingeprint* types more meaningful *HashValue* names.

Cleaning up lint along the way.

BUG=117914
TEST=net_unittests, unit_tests TransportSecurityPersisterTest

Review URL: https://chromiumcodereview.appspot.com/10545166

TBR=palmer@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=149268

[wtc, 2012-08-01 22:06:33]

https://chromiumcodereview.appspot.com/10827104/diff/1/net/socket/ssl_client_...
File net/socket/ssl_client_socket_nss.cc (left):

https://chromiumcodereview.appspot.com/10827104/diff/1/net/socket/ssl_client_...
net/socket/ssl_client_socket_nss.cc:3458:
server_cert_verify_result_.public_key_hashes)) {

server_cert_verify_result_.public_key_hashes is a vector of
vectors (std::vector<HashValueVector>), so we'll need to
take an element of the outer vector here.

[palmer, 2012-08-01 22:16:42]

> server_cert_verify_result_.public_key_hashes is a vector of
> vectors (std::vector<HashValueVector>), so we'll need to
> take an element of the outer vector here.

Yep, I fixed it yesterday but I haven't posted the new CL yet. Will do so today.