docs: Made javadoc references less ambiguous

Paragraph had references to two different methods with the same
name (but in different classes). Qualified the method names with the
class names (Foo.doSomething(), Bar.doSomething() ) to make it
clearer.

See first comment for doc stage location.

bug: 24979554
Change-Id: I0435aab48be1a9935fe2f4bc2ab448a333b0ae99