The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c65cd02f2410fdd1891b06e00c0c2b15d379f891

commit c65cd02f2410fdd1891b06e00c0c2b15d379f891
Author: Peter Schaffner <pschaffner@chromium.org>
Date: Mon Aug 21 14:11:26 2017

Change “Scan QR Code” icon back to a QR code glyph

Bug:  756845 
Change-Id: I231a3879bf118736369bb905d194c0083627bcd8
Reviewed-on: https://chromium-review.googlesource.com/623650
Reviewed-by: Elodie Banel <lod@chromium.org>
Commit-Queue: Pete Schaffner <pschaffner@chromium.org>
Cr-Commit-Position: refs/heads/master@{#495928}
[modify] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/BUILD.gn
[modify] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/resources/BUILD.gn
[delete] https://crrev.com/6464d972c7aa90709c923d36b22b2370973a9a76/ios/chrome/search_widget_extension/resources/quick_action_camera_search.imageset/quick_action_camera_search.png
[delete] https://crrev.com/6464d972c7aa90709c923d36b22b2370973a9a76/ios/chrome/search_widget_extension/resources/quick_action_camera_search.imageset/quick_action_camera_search@2x.png
[delete] https://crrev.com/6464d972c7aa90709c923d36b22b2370973a9a76/ios/chrome/search_widget_extension/resources/quick_action_camera_search.imageset/quick_action_camera_search@3x.png
[rename] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/resources/quick_action_scan_qr_code.imageset/Contents.json
[add] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/resources/quick_action_scan_qr_code.imageset/quick_action_scan_qr_code.png
[add] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/resources/quick_action_scan_qr_code.imageset/quick_action_scan_qr_code@2x.png
[add] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/resources/quick_action_scan_qr_code.imageset/quick_action_scan_qr_code@3x.png
[modify] https://crrev.com/c65cd02f2410fdd1891b06e00c0c2b15d379f891/ios/chrome/search_widget_extension/search_widget_view.mm