Fix type error in r37647

Fix type error in r37647

BUG=
R=herhut@google.com

Committed: https://code.google.com/p/dart/source/detail?r=37654

[Bill Hesse, 2014-06-24 11:14:12]

We cannot use the actual type _RawSocket, because that type is only added in the
patch file.

[herhut, 2014-06-24 11:24:31]

https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dart
File sdk/lib/io/secure_socket.dart (right):

https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dar...
sdk/lib/io/secure_socket.dart:613: (_socket as dynamic)._owner = owner;
How about an assignment to a local variable instead to avoid the (potential)
runtime overhead?

[herhut, 2014-06-24 11:28:12]

On 2014/06/24 11:24:31, herhut wrote:
> https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dart
> File sdk/lib/io/secure_socket.dart (right):
> 
>
https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dar...
> sdk/lib/io/secure_socket.dart:613: (_socket as dynamic)._owner = owner;
> How about an assignment to a local variable instead to avoid the (potential)
> runtime overhead?

Never mind, if coding convention in the library is to use 'as dynamic' then we
should be consistent. 

LGTM.

[Bill Hesse, 2014-06-24 11:29:03]

https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dart
File sdk/lib/io/secure_socket.dart (right):

https://codereview.chromium.org/349403003/diff/1/sdk/lib/io/secure_socket.dar...
sdk/lib/io/secure_socket.dart:613: (_socket as dynamic)._owner = owner;
On 2014/06/24 11:24:31, herhut wrote:
> How about an assignment to a local variable instead to avoid the (potential)
> runtime overhead?

There are 3 other places in this file where we use "as dynamic", which should
have no overhead.  So it is better to be consistent in the file, I think.

[Bill Hesse, 2014-06-24 11:30:22]

Committed patchset #1 manually as r37654 (presubmit successful).