What Food Consists Of A Chinese Breakfast?

Depends on which part of China you are talking about. In the south like Hong Kong, or Guangzhou, people will go to the restaurants to have breakfast called 'Yum Char' which includes a pot of tea at your choice ( such as Puri tea, jasmine tea, Loong cheng tea etc,) , then you can order different types of little dishes of Dim Sum or in some old fashion morning restaurants, they have workers pulling a trolley around with Dim Sum on it for customers to order straight away.
In the northern part of China, as it's usually colder, people incline to have noodle and white bun as breakfast.

First of all, Chinese do not eat dim sum for breakfast traditionally.

There is no special food set aside traditionally for Chinese. Breakfast consists of leftovers from the night before with rice. Or, it could be congee (rice porridge) with a type of fried bread (youtiao, search on Wikipedia for "youtiao"), some pickles, and leftover food.

However, if you talk about contemporary Chinese, the meal could consist of bread, jam, butter etc.

I agree with Tea. I was in China ( Wuxi ) for 2 1/2 weeks in Oct. I also work with three Chinese, born and raised in China. A typical breakfast while I was there was Congee and maybe some fruit. Pickled vegetables were common. The street vendors usually had Oxtail Soup. More like just broth with a little shredded vegetables.
Or you could get an Egg McMuffin.

Congee! (Rice porridge)

buns and stuff from the bakery usually ( like buns with paste inside) or just regular breakfast like bread

rice and sprouts with a little egg scrambled in

Rice

Most common Chinese breakfast food:
- rice porridge/congee
(http://a5.vox.com/6a00ccff8c1a17673100e398d721b50002-500pi)

- fried bread/donut
(http://i5.photobucket.com/albums/y172/winnieinlondon/DSC03984.jpg)

- soy milk

- stick rice roll
(http://www.openrice.com/UserPhoto/phot/0/B1/0026I7A419B638CC01ECDFm.jpg)

- steamed rice rolls
(http://i5.photobucket.com/albums/y152/boo_licious/misc4/PanFriedRicesheetRoll.jpg)

- steamed meat or veggie buns
(http://farm1.static.flickr.com/32/60388480_0d1a9b0fc1.jpg?v=0)

Dim sum and rice