WebView Guest should use ZOOM_MODE_ISOLATED.

WebView Guest should use ZOOM_MODE_ISOLATED.

In order that changes to zoom levels in a WebView Guest don't affect
the embedder, set the WebView Guest's WebContents to use
ZOOM_MODE_ISOLATED.

BUG=418605
Committed: https://crrev.com/f71a5dc79473cc74990d1e288c66ac282c2926a1
Cr-Commit-Position: refs/heads/master@{#299493}

[wjmaclean, 2014-10-10 19:36:21]

wjmaclean@chromium.org changed reviewers:
+ fsamuel@chromium.org

[Fady Samuel, 2014-10-10 21:03:40]

lgtm but it would be nice to get a test (in a separate CL if you wish) for this
to avoid regressions in the future. Thanks!

[wjmaclean, 2014-10-14 15:13:46]

On 2014/10/10 21:03:40, Fady Samuel wrote:
> lgtm but it would be nice to get a test (in a separate CL if you wish) for
this
> to avoid regressions in the future. Thanks!

I'll land this and get a test in the works immediately.

[wjmaclean, 2014-10-14 15:19:30]

The CQ bit was checked by wjmaclean@chromium.org

[commit-bot: I haz the power, 2014-10-14 15:20:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/645153002/100001

[commit-bot: I haz the power, 2014-10-14 15:58:50]

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

[commit-bot: I haz the power, 2014-10-14 15:58:51]

Try jobs failed on following builders:
  linux_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu_trigger...)

[wjmaclean, 2014-10-14 16:12:47]

The CQ bit was checked by wjmaclean@chromium.org

[commit-bot: I haz the power, 2014-10-14 16:13:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/645153002/100001

[commit-bot: I haz the power, 2014-10-14 16:33:43]

Committed patchset #2 (id:100001)

[commit-bot: I haz the power, 2014-10-14 16:34:34]

Patchset 2 (id:??) landed as
https://crrev.com/f71a5dc79473cc74990d1e288c66ac282c2926a1
Cr-Commit-Position: refs/heads/master@{#299493}

[wjmaclean, 2014-10-31 21:38:21]

A revert of this CL (patchset #2 id:100001) has been created in
https://codereview.chromium.org/690373002/ by wjmaclean@chromium.org.

The reason for reverting is: This CL seems to be at the root of several other
issues, including https://code.google.com/p/chromium/issues/detail?id=429004.

In particular, it seems to be allowing re-entrancy into ZoomController that was
unexpected due to the timing with which OnGuestReady() is called..