Fix autofill popup controller key press callback registration

Fix autofill popup controller key press callback registration

Currently, PopupControllerCommon::RegisterKeyPressCallback registers its key
press handler via RenderView. This results in broken key handling with site
isolation. The fix is to use the focused RenderFrame itself.

BUG=688848
Review-Url: https://codereview.chromium.org/2762233004
Cr-Commit-Position: refs/heads/master@{#462381}
(cherry picked from commit 6d61e0d262cc02641e963c1fc4fccd374555fad7)

Review-Url: https://codereview.chromium.org/2805173003 .
Cr-Commit-Position: refs/branch-heads/3029@{#633}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/1c23dd84142131a6090f9032ddd0776af68e0dc6

[vabr (Chromium), 2017-04-07 21:24:16]

Description was changed from

==========
Fix autofill popup controller key press callback registration

Currently, PopupControllerCommon::RegisterKeyPressCallback registers its key
press handler via RenderView. This results in broken key handling with site
isolation. The fix is to use the focused RenderFrame itself.

BUG=688848

Review-Url: https://codereview.chromium.org/2762233004
Cr-Commit-Position: refs/heads/master@{#462381}
(cherry picked from commit 6d61e0d262cc02641e963c1fc4fccd374555fad7)
==========

to

==========
Fix autofill popup controller key press callback registration

Currently, PopupControllerCommon::RegisterKeyPressCallback registers its key
press handler via RenderView. This results in broken key handling with site
isolation. The fix is to use the focused RenderFrame itself.

BUG=688848

Review-Url: https://codereview.chromium.org/2762233004
Cr-Commit-Position: refs/heads/master@{#462381}
(cherry picked from commit 6d61e0d262cc02641e963c1fc4fccd374555fad7)

Review-Url: https://codereview.chromium.org/2805173003 .
Cr-Commit-Position: refs/branch-heads/3029@{#633}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/1c23dd84142131a6090f9032ddd0...
==========

[vabr (Chromium), 2017-04-07 21:24:18]

Committed patchset #1 (id:1) manually as
1c23dd84142131a6090f9032ddd0776af68e0dc6.