Fix android build error with gcc 4.7.2

Fix android build error with gcc 4.7.2.

Compiling the latest source tree with gcc 4.7.2 currently breaks at:

../../tools/android/forwarder2/socket.cc: In member function ‘int forwarder2::Socket::Read(void*, size_t)’:
../../tools/android/forwarder2/socket.cc:323:13: error: ‘read’ was not declared in this scope
../../tools/android/forwarder2/socket.cc:323:13: error: invalid type in declaration before ‘;’ token
[2269/11351] CXX obj/chrome/app/policy/gen...ettings_proto_compile.chrome_settings.pb.o
ninja: build stopped: subcommand failed.

It seems that 'tools/android/forwarder2/socket.cc' needs '#include <unistd.h>.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=179569

[felipeg, 2013-01-24 10:56:07]

lgtm

[commit-bot: I haz the power, 2013-01-24 11:35:57]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a lowly provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[bulach, 2013-01-24 17:20:04]

lgtm, thanks!

[Isaac (away), 2013-01-24 18:10:31]

Drive By: Needs a better title and description. For CQ, it uses the first line
free description as the commit title, so usually this line should be a copy of
the title of the review. Them a blank line. 

Title should mention android.

[Sungmann Cho (Inactive), 2013-01-25 00:18:34]

I modified the issue title and description.

[Isaac (away), 2013-01-25 00:19:32]

Thanks, looks better.  LGTM

[commit-bot: I haz the power, 2013-01-25 01:55:35]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/Sungmann.Cho@gmail.com/11896088/1

[commit-bot: I haz the power, 2013-01-25 01:55:38]

Presubmit check for 11896088-1 failed and returned exit status 1.


Running presubmit commit checks ...

** Presubmit Messages **
If this change has an associated bug, add BUG=[bug number].

** Presubmit Warnings **
Sungmann.Cho@gmail.com is not in AUTHORS file. If you are a new contributor,
please visit
http://www.chromium.org/developers/contributing-code and read the "Legal"
section
If you are a chromite, verify the contributor signed the CLA.

Presubmit checks took 1.0s to calculate.

[Sungmann Cho (Inactive), 2013-01-25 02:47:59]

I added the AUTHORS. It's my first patch ;-)

[Isaac (away), 2013-01-25 02:48:31]

looks like you're missing the change now.

[Sungmann Cho (Inactive), 2013-01-25 02:58:40]

I'm sorry for the missing.

[Isaac (away), 2013-01-25 03:08:35]

lgtm.  To committers: Verified agreement was signed.

[commit-bot: I haz the power, 2013-01-25 03:08:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/Sungmann.Cho@gmail.com/11896088/6003

[commit-bot: I haz the power, 2013-01-25 04:47:31]

Retried try job too often on mac_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2013-01-30 05:57:29]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/Sungmann.Cho@gmail.com/11896088/6003

[commit-bot: I haz the power, 2013-01-30 09:14:32]

Change committed as 179569