A method is performed by an electronic device with a display and a touch-sensitive surface. The method includes: displaying a progress icon; detecting a contact at a location that corresponds to the progress icon; detecting contact movement that comprises a first component in a direction corresponding to movement on the display parallel to a first predefined direction and a second component in a direction corresponding to movement on the display perpendicular to the first predefined direction; and, while detecting movement of the contact: determining a current offset distance; and, in response to detecting a current first component of movement of the contact, moving the current position within the content at a scrubbing rate, wherein: the scrubbing rate decreases as the current offset distance increases, and the direction of movement of the current position within the content is in accordance with the direction of the current first component of movement.