Additional Commits for Linux printer driver

Initial commit for Linux virtual printer


BUG=
TEST=


Review URL: http://codereview.chromium.org/7222011

git-svn-id: http://src.chromium.org/svn/trunk/src/build@92378 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -81,6 +81,7 @@
             '../breakpad/breakpad.gyp:*',
             '../courgette/courgette.gyp:*',
             '../sandbox/sandbox.gyp:*',
+            '../cloud_print/virtual_driver/virtual_driver_linux.gyp:*',
           ],
           'conditions': [
             ['branding=="Chrome"', {