Refactor the bench and common gyp/gypi files to allow for building bench within
a chromium checkout (using chromium build configuration).

BUG=362
TEST=Build bench from within the chromium and skia source tree, ensured it built
     and ran successfully.
Review URL: http://codereview.appspot.com/5023042

git-svn-id: http://skia.googlecode.com/svn/trunk@2270 2bbb7eff-a529-9590-31e7-b0007b416f81
5 files changed