Reland "WebMCP: Remove the ModelContextTesting API" [chromium/src : main]

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Alex Moshchuk (Gerrit)

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Jun 22, 2026, 7:16:14 PM (6 days ago) Jun 22
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Line 10, Patchset 1 (Latest):
Alex Moshchuk . unresolved

Please include a description of what changed in the reland, and ideally those changes should go into their own patchset.

I'm happy to stamp content/ once other reviewers are happy with the reland overall.

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Khushal Sagar (Gerrit)

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Jun 23, 2026, 3:05:27 AM (6 days ago) Jun 23
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Khushal Sagar voted and added 1 comment

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File chrome/browser/about_flags.cc
Line 12514, Patchset 1 (Latest): {"enable-webmcp-testing", flag_descriptions::kWebMCPName,
Khushal Sagar . unresolved

We don't need this flag at all now. The WebMCP feature itself is sufficient.

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Fr (Gerrit)

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Jun 23, 2026, 3:09:36 AM (6 days ago) Jun 23
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Fr added 1 comment

File chrome/browser/about_flags.cc
Line 12514, Patchset 1 (Latest): {"enable-webmcp-testing", flag_descriptions::kWebMCPName,
Khushal Sagar . unresolved

We don't need this flag at all now. The WebMCP feature itself is sufficient.

Fr

It's actually useful for web developers to have a flag to turn on WebMCP. See https://developer.chrome.com/docs/ai/webmcp#local_webmcp

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Khushal Sagar (Gerrit)

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Jun 23, 2026, 3:27:21 AM (6 days ago) Jun 23
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Khushal Sagar added 1 comment

File chrome/browser/about_flags.cc
Line 12514, Patchset 1 (Latest): {"enable-webmcp-testing", flag_descriptions::kWebMCPName,
Khushal Sagar . resolved

We don't need this flag at all now. The WebMCP feature itself is sufficient.

Fr

It's actually useful for web developers to have a flag to turn on WebMCP. See https://developer.chrome.com/docs/ai/webmcp#local_webmcp

Khushal Sagar

Ah, didn't realize that's what the documentation suggests. The feature is marked experimental so chrome://flags/#enable-experimental-web-platform-features works. But a dedicated flag is good too.

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