`browser_agent` - use chrome-devtools-mcp v0.18.1

[lesteral]

What would you like to be added?

@gsquared94 - currently, browser_agent (#19284) pins chrome-devtools-mcp at v0.17.1.
(Thank you for adding this built-in agent, BTW.)

Ref. https://github.com/google-gemini/gemini-cli/blob/main/packages/core/src/agents/browser/browserManager.ts

// Pin chrome-devtools-mcp version for reproducibility.
const CHROME_DEVTOOLS_MCP_VERSION = '0.17.1';

It would be helpful to move to chrome-devtools-mcp v0.18.1.

As per https://github.com/ChromeDevTools/chrome-devtools-mcp/releases:

🛠️ Fixes
detect X server display on Linux (ChromeDevTools/chrome-devtools-mcp#1027) (1746ed9)

Thanks for your consideration.

Regards,
Lester

Why is this needed?

It will (or at least should) allow/facilitate "headed" mode on Crostini - see ChromeDevTools/chrome-devtools-mcp#1027 - fix: detect X server display on Linux

Additional context

I just happened upon on this new feature, when I updated the chrome-devtools-mcp extension to latest.

/extensions update chrome-devtools-mcp

[AshishThorat28]

Hello , I'd like to help out by bumping the chrome-devtools-mcp version. Could you assign this to me?

[lesteral]

Closing, since this request is incorporated in #20983