[Android] Inject cosmetic filtering scriptlets in all frames

[kjozwiak]

Description

Similar to #10319, we need to make sure that ads aren't appearing under embedded YT videos.

Steps to reproduce

1. download/install 1.10.95 CR: 83.0.4103.106
2. visit https://www.pcmag.com/news/the-best-vr-games-for-2019 and play through a few of the videos

Actual result

You'll see ads being played that aren't skippable as per the following:

Expected result

Ads shouldn't appear while playing through embedded videos.

Issue reproduces how often

100% reproducible when using the STR mentioned above. Sometimes you'll need to run through a few videos before seeing videos.

Issue happens on

• Current Play Store version? Yes (reproduced with 1.10.95 CR: 83.0.4103.106)
• Beta build? Yes (reproduced with 1.10.96 CR: 83.0.4103.106)

However, can't reproduce with Nightly using 1.12.45 CR: 83.0.4103.116

Device details

• Install type (ARM, x86): ARM
• Device (Phone, Tablet, Phablet): Samsung S10+
• Android version: Android 10

Brave version

• Using 1.10.95 CR: 83.0.4103.106 (Release) & 1.10.96 CR: 83.0.4103.106 (Beta)

Website problems only

• Does the issue resolve itself when disabling Brave Shields? N/A
• Does the issue resolve itself when disabling Brave Rewards? N/A
• Is the issue reproducible on the latest version of Chrome? N/A

Additional information

CCing @bsclifton @antonok-edm @anthonypkeane @SergeyZhukovsky @srirambv

[srirambv]

Verification passed on Samsung Tab A with Android 9 running 1.10.98 x64 build

• Verified test plan from issue description
• Verified on both clean install and upgrade install
• Verified on multiple sites with embedded videos
• Verified no ads when using a VPN and viewing embedded videos

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Verification passed on Samsung Galaxy J3 version 5.1.1 running Bravemodernarm.apk 1.10.98

• Verified test plan from issue description
• Verified on both clean install and upgrade install
• Verified on multiple sites with embedded videos
• Verified no ads when using a VPN and viewing embedded videos

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Verification passed on Asus Zenfone (x86) version 6 running Bravemodernarm.apk 1.10.99

• Verified test plan from issue description
• Verified on both clean install and upgrade install
• Verified on multiple sites with embedded videos