android_webview: Enable FDO support for some targets.

android_webview: Enable FDO support for some targets.

Enable feedback-directed optimisation for the main library (required to
make the FDO symbols present at link time), skia, and sqlite. Update the
android_exports whitelist to allow the gcov symbols to remain public as
otherwise profiling will fail.

BUG=
TBR=michaeln@chromium.org

Committed: https://crrev.com/c7f9a36cbad5fa14875e26d704ba89208f7cb40f
Cr-Commit-Position: refs/heads/master@{#296997}

[Torne, 2014-09-22 16:08:36]

torne@chromium.org changed reviewers:
+ benm@chromium.org, dehao@google.com, primiano@chromium.org

[Torne, 2014-09-22 16:08:37]

This enables LOCAL_FDO_SUPPORT in the same targets where it was enabled
downstream in commit b82e5f8, and also fixes the problem with the gcov symbols
not being visible.

We still also need to enable it in V8 as per downstream 4b64eab.

I'm on vacation from tomorrow though so someone else will have to land this :)

[dehao, 2014-09-22 16:40:24]

lgtm

[benm (inactive), 2014-09-23 18:43:01]

The CQ bit was checked by benm@chromium.org

[benm (inactive), 2014-09-23 18:43:02]

lgtm

[commit-bot: I haz the power, 2014-09-23 20:31:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/591153002/1

[commit-bot: I haz the power, 2014-09-23 20:53:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-23 20:53:55]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[benm (inactive), 2014-09-24 08:59:29]

benm@chromium.org changed reviewers:
+ djsollen@google.com, michaeln@chromium.org

[benm (inactive), 2014-09-24 08:59:29]

+djsollen for skia owners
+michaeln for sqlite owners

[Primiano Tucci (use gerrit), 2014-09-24 10:34:17]

lgtm

[djsollen, 2014-09-24 13:48:14]

lgtm

[benm (inactive), 2014-09-26 09:47:18]

Michael, I hope you don't mind me TBRing you on this gypi change (we've tested
ourselves, and should not impact anything other than WebView) but really would
like to get in before the branch point.

[benm (inactive), 2014-09-26 09:47:32]

The CQ bit was checked by benm@chromium.org

[commit-bot: I haz the power, 2014-09-26 09:48:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/591153002/1

[commit-bot: I haz the power, 2014-09-26 17:11:29]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-26 17:11:30]

Try jobs failed on following builders:
  win_chromium_rel_swarming on tryserver.chromium.win
(http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[benm (inactive), 2014-09-26 18:21:50]

The CQ bit was checked by benm@chromium.org

[benm (inactive), 2014-09-26 18:21:55]

The CQ bit was checked by benm@chromium.org

[commit-bot: I haz the power, 2014-09-26 18:22:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/591153002/1

[commit-bot: I haz the power, 2014-09-26 19:05:15]

Committed patchset #1 (id:1) as 99ffbe0864fa3f86aca837ea1fb949423bad4b43

[commit-bot: I haz the power, 2014-09-26 19:05:57]

Patchset 1 (id:??) landed as
https://crrev.com/c7f9a36cbad5fa14875e26d704ba89208f7cb40f
Cr-Commit-Position: refs/heads/master@{#296997}