* Pass std::strings for the source and profile.
 * Create a wrapper struct for storing the compile configurations and pass
   them to the compiler with an std::vector.
 * Remove function typedefs, they're available from the platform.h header.

BUG=angle:755

Change-Id: I19dd2be1655a12f76fc5718450db974a7ec324ec
Reviewed-on: https://chromium-review.googlesource.com/219287Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>