4219 [camera_web] Add support for device orientation (cla: yes, waiting for tree to go green, p: camera, platform-web)

4222 [camera_web] Add support for a flash mode (cla: yes, waiting for tree to go green, p: camera, platform-web)

4224 [camera_web] Add support for a zoom level (cla: yes, waiting for tree to go green, p: camera, platform-web)

4225 [camera_web] Rename CameraSettings to CameraService (cla: yes, waiting for tree to go green, p: camera, platform-web)

4226 [camera_web] Don’t request full-screen mode in unlockCaptureOrientation (cla: yes, waiting for tree to go green, p: camera, platform-web)

4227 [camera_web] Add setFlashMode comments (cla: yes, waiting for tree to go green, p: camera, platform-web)