Upgrade from Chromium 87.0.4280.47 to Chromium 87.0.4280.49.

[mkarolin]

Minor Chromium bump.

https://chromium.googlesource.com/chromium/src/+log/87.0.4280.47..87.0.4280.49?pretty=fuller&n=10000

QA tests:

Check branding items
Check for version bump

No specific code changes in Brave (only line number changes in patches).

[kjozwiak]

Ensure that the sections that @mkarolin mentioned via #11534 (comment) are checked.

[LaurenWags]

Verified passed with

Brave	1.17.63 Chromium: 87.0.4280.49 (Official Build) unknown (x86_64)
Revision	f77f85899646b42a1d3c8ff36794e00becab9171-refs/branch-heads/4280@{#1115}
OS	macOS Version 10.14.6 (Build 18G6032)

Verified updated Chromium version on brave://version.
Verified sections mentioned in #11534 (comment)

• Confirmed brave://rewards page displays as expected. Confirmed able to join rewards from brave://rewards. Confirmed able to modify settings and settings were retained on restart.
• Confirmed brave://welcome page displays as expected. Confirmed able to navigate thru the slide without error. Confirmed able to interact with the slides without error.
• Confirmed able to import using brave://settings/importData. Confirmed able to select different input from the drop list as well as check/uncheck boxes to control what is imported.
• Confirmed brave://settings displayed as expected. Confirmed able to change various settings and selections were retained on restart. Opened various settings sub pages (ex. brave://settings/passwords, brave://settings/braveSync/setup, etc) and confirmed they opened without issue.
• Confirmed able to set SE via brave://welcome, brave://settings/search, and brave://settings/searchEngines. Confirmed selected SE is retained on restart.

Full manual pass will be completed with #12409.

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Verification passed on

Brave	1.17.63 Chromium: 87.0.4280.49 (Official Build) dev (64-bit)
Revision	f77f85899646b42a1d3c8ff36794e00becab9171-refs/branch-heads/4280@{#1115}
OS	Windows 7 Service Pack 1 (Build 7601.24544)

Verified updated Chromium version on brave://version.
Verified sections mentioned in #11534 (comment)

• Confirmed brave://rewards page displays as expected. Confirmed able to join rewards from brave://rewards. Confirmed able to modify settings and settings were retained on restart.
• Confirmed brave://welcome page displays as expected. Confirmed able to navigate thru the slide without error. Confirmed able to interact with the slides without error.
• Confirmed able to import using brave://settings/importData. Confirmed able to select different input from the drop list as well as check/uncheck boxes to control what is imported.
• Confirmed brave://settings displayed as expected. Confirmed able to change various settings and selections were retained on restart. Opened various settings sub pages (ex. brave://settings/passwords, brave://settings/braveSync/setup, etc) and confirmed they opened without issue.
• Confirmed able to set SE via brave://welcome, brave://settings/search, and brave://settings/searchEngines. Confirmed selected SE is retained on restart.

Full manual pass will be completed.

---

Verification passed on

Brave	1.17.63 Chromium: 87.0.4280.49 (Official Build) dev (64-bit)
Revision	f77f85899646b42a1d3c8ff36794e00becab9171-refs/branch-heads/4280@{#1115}
OS	Ubuntu 18.04 LTS

Verified updated Chromium version on brave://version.

[srirambv]

Verification passed on OnePlus 6T with Android 10 running 1.17.66 x64 beta build

• Verified Android applicable sections mentioned from Upgrade from Chromium 86 to Chromium 87. #11534 (comment)
• Verified able to create a wallet without issues
• Verified able to change rewards settings and retain it between relaunches
• Verified able to change SE and retain it between relaunches
• Verified setting changes are retained across relaunches
  

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Verification passed on Samsung Tab A with Android 10 running 1.17.66 x64 beta build

• Verified Android applicable sections mentioned from Upgrade from Chromium 86 to Chromium 87. #11534 (comment)
• Verified able to create a wallet without issues
• Verified able to change rewards settings and retain it between relaunches
• Verified able to change SE and retain it between relaunches
• Verified setting changes are retained across relaunches
  

[LaurenWags]

re-labeling as release-notes/exclude as this is superseded by #12676