4304 [camera_web] Make plugin publishable for the first time. (cla: yes, waiting for tree to go green, p: camera, platform-web)

4314 Revert “[image_picker] add forceFullMetadata to interface” (cla: yes, p: image_picker, platform-web)

4330 [video_player] add support for content-uri based videos (cla: yes, p: video_player, platform-web)

4342 [camera_web] Release the camera stream used to request video and audio permissions (cla: yes, waiting for tree to go green, p: camera, platform-web)

4346 [google_sign_in_web] Update URL to google_sign_in package in README (cla: yes, waiting for tree to go green, p: google_sign_in, platform-web, last mile)