Revert of Remove pageview from map immediately

Revert of Remove pageview from map immediately (patchset #1 id:1 of https://codereview.chromium.org/2179283005/ )

Reason for revert:
Looks like this broke linux_asan embedder tests.

https://build.chromium.org/p/client.pdfium/builders/linux_asan/builds/1152/steps/embeddertests/logs/stdio

Original issue's description:
> Remove pageview from map immediately
> 
> There seems to be an ownership issue in the page annotation code where removing
> the annotations can result in removing the parent page view. This is fine except
> that removing the parent page view removes the annotations and you can end up
> with a use-after-free.
> 
> This CL removes the page view from the documents page map immediately and then
> proceeds with the cleanup. Then, if we try to remove that page again it won't
> be found and we won't double free.
> 
> BUG=chromium:630654
> 
> Committed: https://pdfium.googlesource.com/pdfium/+/49dce65dc78bcd5a0c78a8bbdf2809cf20212220

TBR=thestig@chromium.org,weili@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:630654
Committed: https://pdfium.googlesource.com/pdfium/+/f2cee9894b9f7cf2e50060965ad1eedd90ab55b6

[dsinclair, 2016-07-26 19:19:35]

The CQ bit was checked by dsinclair@chromium.org

[dsinclair, 2016-07-26 19:19:35]

Created Revert of Remove pageview from map immediately

[commit-bot: I haz the power, 2016-07-26 19:19:39]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-26 19:19:45]

Description was changed from

==========
Revert of Remove pageview from map immediately (patchset #1 id:1 of
https://codereview.chromium.org/2179283005/ )

Reason for revert:
Looks like this broke linux_asan embedder tests.

https://build.chromium.org/p/client.pdfium/builders/linux_asan/builds/1152/st...

Original issue's description:
> Remove pageview from map immediately
> 
> There seems to be an ownership issue in the page annotation code where
removing
> the annotations can result in removing the parent page view. This is fine
except
> that removing the parent page view removes the annotations and you can end up
> with a use-after-free.
> 
> This CL removes the page view from the documents page map immediately and then
> proceeds with the cleanup. Then, if we try to remove that page again it won't
> be found and we won't double free.
> 
> BUG=chromium:630654
> 
> Committed:
https://pdfium.googlesource.com/pdfium/+/49dce65dc78bcd5a0c78a8bbdf2809cf2021...

TBR=thestig@chromium.org,weili@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:630654
==========

to

==========
Revert of Remove pageview from map immediately (patchset #1 id:1 of
https://codereview.chromium.org/2179283005/ )

Reason for revert:
Looks like this broke linux_asan embedder tests.

https://build.chromium.org/p/client.pdfium/builders/linux_asan/builds/1152/st...

Original issue's description:
> Remove pageview from map immediately
> 
> There seems to be an ownership issue in the page annotation code where
removing
> the annotations can result in removing the parent page view. This is fine
except
> that removing the parent page view removes the annotations and you can end up
> with a use-after-free.
> 
> This CL removes the page view from the documents page map immediately and then
> proceeds with the cleanup. Then, if we try to remove that page again it won't
> be found and we won't double free.
> 
> BUG=chromium:630654
> 
> Committed:
https://pdfium.googlesource.com/pdfium/+/49dce65dc78bcd5a0c78a8bbdf2809cf2021...

TBR=thestig@chromium.org,weili@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:630654

Committed:
https://pdfium.googlesource.com/pdfium/+/f2cee9894b9f7cf2e50060965ad1eedd90ab...
==========

[commit-bot: I haz the power, 2016-07-26 19:19:46]

Committed patchset #1 (id:1) as
https://pdfium.googlesource.com/pdfium/+/f2cee9894b9f7cf2e50060965ad1eedd90ab...