And I can say from (admittedly anecdotal) experience that it's not entirely unlikely. Outside of Los Angeles Proper, Hispanics don't vote all that Democrat.
Bay area?
Of course in Southern California, Hispanics who live in OC or the IE seem to be more conservative than their counterparts in LA. Though some of that has to do with the whites living in those areas being very Republican (as opposed to those in LA or the bay area),and thus making it seem like the Hispanics who live there are significantly more Republican than they are.
Also I should mention that asians do sometimes vote similarly to whites for statewide offices. For example in 2006, Schwarzenegger actually got a slightly higher proportion of the asian vote as opposed to the white vote. Hispanics tend to stick with Democrats though, so it will be interesting to see if Whitman is able to change that.