[all variants] How to disable specific API on Chromium?

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http://ubuntuforums.org – Hi, When I load a page and it use Adobe Flash and the page want to get the voice from user, Adobe Flash asks me if I want to enable voice API. But on google's official english page we can search by voice. When google use the voice, Chromium does not asks anything. I use also 10 enabled extensions. We are using open source web browsers. How can I disable (with extension, trick or something) specific functions (APIs) for extensions also for the pages that we load. Thanks in advance... (Hardware)