Render Layers in Maya

Diffuse
Include your textured object, use only surface shaders as this layer will capture only texture information not light.

Specular
Use a black blinn with the proper settings on your object.  Include lights in this layer.

Shadow
Include the ground plane, your object, and lights that cast shadows.
Shade your objects and the ground plane white with no reflections or specularity.

Reflection
No lights in this layer.
You will use your cropped chrome sphere photo for this step.
In Maya make a sphere that is larger than your entire scene.
Assign a surface shader to this environment sphere.
In the surface shader attribute pane, change color to your chrome sphere file as a projection.
In projection settings change projection type to Ball.
In the material attributes change hardware texturing to out color.
Keep resolution at highest.

You will need to make another shader for your object.
Make a blinn and color it white.
Diffuse = 0
Eccentricity = 0
Spec rolloff = 1
Spec Color = White
Intensity = 1

Remember to turn off your reflection dome's visibility.