GN: Audio device module
GN: Audio device module

The GN files are based upon the GYP files as of r7009.

BUG=3441
TESTED=Passing builds with:
gn gen out/Default --args="build_with_chromium=false" && ninja -C out/Default
gn gen out/Default --args="build_with_chromium=false is_debug=true" && ninja -C out/Default
gn gen out/Default --args="build_with_chromium=false os=\"android\" cpu_arch=\"arm\" is_clang=false" && ninja -C out/Default
gn gen out/Default --args="build_with_chromium=false os=\"android\" cpu_arch=\"arm\" arm_version=7 is_clang=false" && ninja -C out/Default

Compilation of Chromium's 'all' target with src/third_party/webrtc
symlinked to the WebRTC checkout with this CL applied, both
with the default GN settings and using
--args="is_debug=false os=\"android\" cpu_arch=\"arm\""

R=brettw@chromium.org

Review URL: https://webrtc-codereview.appspot.com/14259004

git-svn-id: 03ae4fbe531b1eefc9d815f31e49022782c42458@7013 4adac7df-926f-26a2-2b94-8c16560cd09d

aleonliao/webrtc-trunk,Omegaphora/external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,jchavanton/webrtc,PersonifyInc/chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,sippet/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,android-ia/platform_external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,android-ia/platform_external_chromium_org_third_party_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,Omegaphora/external_chromium_org_third_party_webrtc,sippet/webrtc,krieger-od/webrtc,sippet/webrtc,krieger-od/nwjs_chromium_webrtc,Alkalyne/webrtctrunk,PersonifyInc/chromium_webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,krieger-od/webrtc,MIPS/external-chromium_org-third_party-webrtc,jchavanton/webrtc,Alkalyne/webrtctrunk,jchavanton/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,krieger-od/nwjs_chromium_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,jchavanton/webrtc,krieger-od/nwjs_chromium_webrtc,Alkalyne/webrtctrunk,krieger-od/webrtc,jchavanton/webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,sippet/webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,aleonliao/webrtc-trunk,MIPS/external-chromium_org-third_party-webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,jchavanton/webrtc,krieger-od/webrtc,geekboxzone/lollipop_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,PersonifyInc/chromium_webrtc,aleonliao/webrtc-trunk,jgcaaprom/android_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,android-ia/platform_external_chromium_org_third_party_webrtc,MIPS/external-chromium_org-third_party-webrtc,Omegaphora/external_chromium_org_third_party_webrtc,PersonifyInc/chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,krieger-od/webrtc,krieger-od/webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,jchavanton/webrtc,MIPS/external-chromium_org-third_party-webrtc,PersonifyInc/chromium_webrtc,jgcaaprom/android_external_chromium_org_third_party_webrtc,sippet/webrtc,Omegaphora/external_chromium_org_third_party_webrtc,krieger-od/nwjs_chromium_webrtc,Alkalyne/webrtctrunk,MIPS/external-chromium_org-third_party-webrtc,Alkalyne/webrtctrunk,jgcaaprom/android_external_chromium_org_third_party_webrtc,Alkalyne/webrtctrunk,sippet/webrtc