The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a7333a897cef118f860fb4269feefb93465379d8

commit a7333a897cef118f860fb4269feefb93465379d8
Author: sawtelle <sawtelle@google.com>
Date: Thu May 31 02:36:36 2018

[Picture in Picture] Adding in-tab icon when playing Picture in Picture

This change will add an icon on the tab that appears when a user
is playing a video in picture-in-picture mode, similar to what
exists currently with audio playing and other similar features.

Per discussion, this icon will take precedent only over the audio
playing and audio_muted icons, while others (bluetooth, usb
connected, etc.) will stay at a higher level for security concerns.

Bug:  842742 
Change-Id: I9d8d7bf7764b156054838ffb5b02116fd78fbc38
Reviewed-on: https://chromium-review.googlesource.com/1068109
Commit-Queue: Steven Sawtelle <sawtelle@google.com>
Reviewed-by: apacible <apacible@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Reviewed-by: Mounir Lamouri <mlamouri@chromium.org>
Reviewed-by: Yuri Wiitala <miu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#563128}
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/app/generated_resources.grd
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/app/vector_icons/BUILD.gn
[add] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/app/vector_icons/picture_in_picture_alt.icon
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/picture_in_picture/picture_in_picture_window_controller_browsertest.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/themes/theme_properties.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/themes/theme_properties.h
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/ui/cocoa/tabs/tab_view.mm
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/ui/tabs/tab_utils.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/ui/tabs/tab_utils.h
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/ui/views/tabs/tab.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/chrome/browser/ui/views/tabs/tab_unittest.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/content/browser/picture_in_picture/picture_in_picture_window_controller_impl.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/content/browser/picture_in_picture/picture_in_picture_window_controller_impl.h
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/content/browser/web_contents/web_contents_impl.cc
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/content/browser/web_contents/web_contents_impl.h
[modify] https://crrev.com/a7333a897cef118f860fb4269feefb93465379d8/content/public/browser/web_contents.h

This bug requires manual review: There is .grd file changes and we are only 52 days from stable.
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), kariahda@(iOS), bhthompson@(ChromeOS), abdulsyed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Approved- branch:3440

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0a419186d3e8fe4a6065f13ccf845e91cd643374

commit 0a419186d3e8fe4a6065f13ccf845e91cd643374
Author: sawtelle <sawtelle@google.com>
Date: Tue Jun 05 18:49:14 2018

[Picture in Picture] Adding in-tab icon when playing Picture in Picture

This change will add an icon on the tab that appears when a user
is playing a video in picture-in-picture mode, similar to what
exists currently with audio playing and other similar features.

Per discussion, this icon will take precedent only over the audio
playing and audio_muted icons, while others (bluetooth, usb
connected, etc.) will stay at a higher level for security concerns.

Bug:  842742 
Change-Id: I9d8d7bf7764b156054838ffb5b02116fd78fbc38
Reviewed-on: https://chromium-review.googlesource.com/1068109
Commit-Queue: Steven Sawtelle <sawtelle@google.com>
Reviewed-by: apacible <apacible@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Reviewed-by: Mounir Lamouri <mlamouri@chromium.org>
Reviewed-by: Yuri Wiitala <miu@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#563128}(cherry picked from commit a7333a897cef118f860fb4269feefb93465379d8)
Reviewed-on: https://chromium-review.googlesource.com/1082941
Cr-Commit-Position: refs/branch-heads/3440@{#190}
Cr-Branched-From: 010ddcfda246975d194964ccf20038ebbdec6084-refs/heads/master@{#561733}
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/app/generated_resources.grd
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/app/vector_icons/BUILD.gn
[add] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/app/vector_icons/picture_in_picture_alt.icon
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/picture_in_picture/picture_in_picture_window_controller_browsertest.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/themes/theme_properties.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/themes/theme_properties.h
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/ui/cocoa/tabs/tab_view.mm
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/ui/tabs/tab_utils.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/ui/tabs/tab_utils.h
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/ui/views/tabs/tab.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/chrome/browser/ui/views/tabs/tab_unittest.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/content/browser/picture_in_picture/picture_in_picture_window_controller_impl.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/content/browser/picture_in_picture/picture_in_picture_window_controller_impl.h
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/content/browser/web_contents/web_contents_impl.cc
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/content/browser/web_contents/web_contents_impl.h
[modify] https://crrev.com/0a419186d3e8fe4a6065f13ccf845e91cd643374/content/public/browser/web_contents.h

Once this task is completed, you can mark it as fixed. :)