No, McCain’s SR511 has nothing to do with Obama’s eligibility. It merely states that “children born to Americans serving in the military” are eligible to run for President even if born overseas.
It has everything to do with the definition of "natural born citizen" that these 100 Senators and their staffers accepted as fact, acknowledging that both parents had to be U.S. citizens at the birth of the child in order for that child to be a natural born citizen.
Perhaps you should read that resolution a little more carefully, you left out the AMERICAN CITIZENS part:
Whereas John Sidney McCain, III, was born to American citizens on an American military base in the Panama Canal Zone in 1936: Now, therefore, be it
Resolved, That John Sidney McCain, III, is a `natural born Citizen' under Article II, Section 1, of the Constitution of the United States.
http://www.govtrack.us/congress/billtext.xpd?bill=sr110-511
Obama is not eligible per this resolution.