Remove the usage of WebElement::innerText in Chromium.

Remove the usage of WebElement::innerText in Chromium.

This is part 2 of removing WebElement::innerText.

BUG=488088
R=jochen@chromium.org

Committed: https://crrev.com/3c1f64f9c822002263d9f0aa4e5e02cebb26671f
Cr-Commit-Position: refs/heads/master@{#330127}

[dglazkov, 2015-05-14 21:36:30]

The CQ bit was checked by dglazkov@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-05-14 21:37:25]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131993009/1

[jam, 2015-05-14 21:48:33]

jam@chromium.org changed reviewers:
+ jam@chromium.org

[jam, 2015-05-14 21:48:34]

lgtm

[commit-bot: I haz the power, 2015-05-14 21:55:19]

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

[commit-bot: I haz the power, 2015-05-14 21:55:20]

Dry run: Try jobs failed on following builders:
  linux_chromium_gn_rel on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[jochen (gone - plz use gerrit), 2015-05-15 13:54:11]

lgtm

[dglazkov, 2015-05-15 14:36:21]

The CQ bit was checked by dglazkov@chromium.org

[commit-bot: I haz the power, 2015-05-15 14:36:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131993009/1

[commit-bot: I haz the power, 2015-05-15 15:16:22]

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

[commit-bot: I haz the power, 2015-05-15 15:16:24]

Try jobs failed on following builders:
  linux_chromium_chromeos_ozone_rel_ng on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[dglazkov, 2015-05-15 16:43:09]

The CQ bit was checked by dglazkov@chromium.org

[dglazkov, 2015-05-15 16:43:09]

The patchset sent to the CQ was uploaded after l-g-t-m from jochen@chromium.org,
jam@chromium.org
Link to the patchset: https://codereview.chromium.org/1131993009/#ps20001
(title: "Fixed serializer test.")

[commit-bot: I haz the power, 2015-05-15 16:43:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1131993009/20001

[commit-bot: I haz the power, 2015-05-15 17:51:05]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-05-15 17:52:52]

Patchset 2 (id:??) landed as
https://crrev.com/3c1f64f9c822002263d9f0aa4e5e02cebb26671f
Cr-Commit-Position: refs/heads/master@{#330127}