Governor Deval Patrick said Tuesday he is confident that health care cost increases can be slowed to no more than the annual growth of the Massachusetts economy without harming the hospitals and doctors that make up the state’s dominant industry. Speaking to the Greater Boston Chamber of Commerce, Patrick did not explicitly put his support behind either of the two cost-containment bills now being debated in the Legislature. However, he said he likely would not support anything that allowed health spending to continue to grow more quickly than the gross state product, a measure of economic activity.