Mostly revert r286392 (Roll BoringSSL.)

There was an android failure which I am unsure if was due to BoringSSL roll:
   http://build.chromium.org/p/chromium.linux/builders/Android%20Tests/builds/14894/steps/androidwebview_instrumentation_tests/logs/stdio

I don't have time to investigate tonight, so backing out the majority of the BoringSSL roll.

The difference from a full rollback to 7e3305eebd7fb06d57e7f25b3bbf9c10d526f7d5  is that these two changelists have been kept (since I landed code that depends on RSA_check_key() already):

------------------

commit 05b7377065bd0acd705314a6411b734b67d0774e
Author: Adam Langley <agl@chromium.org>;
Date:   Fri Jul 25 12:03:51 2014 -0700

    Add RSA_check_key function.

    This is function that is available in OpenSSL too. Here it only returns
    zero or one and doesn't do expensive primality checks on p and q.

    https://code.google.com/p/chromium/issues/detail?id=396250

    Change-Id: I7a173da26e06440dbb595fb717e3a620edf23576
    Reviewed-on: https://boringssl-review.googlesource.com/1334
    Reviewed-by: Adam Langley <agl@google.com>;

commit 93a3dcd57262f5bbd84adaa5565abb14f95d79ae
Author: Adam Langley <agl@chromium.org>;
Date:   Fri Jul 25 15:40:44 2014 -0700

    Add AES Key Wrap mode.

    This is needed in order to support Web Crypto.

    https://code.google.com/p/chromium/issues/detail?id=396407

    Change-Id: I900d8cad2716c2e3341eeae153659502326c9173
    Reviewed-on: https://boringssl-review.googlesource.com/1335
    Reviewed-by: Adam Langley <agl@google.com>;

------------------

TBR=agl@chromium.org

Review URL: https://codereview.chromium.org/431543002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@286419 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -85,7 +85,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
-  "boringssl_revision": "5129e2d69582c0c54a335eb7e0bc794a02418403",
+  "boringssl_revision": "05b7377065bd0acd705314a6411b734b67d0774e",
 }
 
 deps = {