Update URLs for deps/third_party/* in DEPS

DEPS

 # This file contains dependencies for WebRTC.
 
 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
+  'webrtc_git': 'https://webrtc.googlesource.com',
   'chromium_revision': '946d80b37f66aa41b1826e64ad7bc60e6fda878a',
   'boringssl_git': 'https://boringssl.googlesource.com',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client
   # and whatever else without interference from each other.
   'swarming_revision': '5e8001d9a710121ce7a68efd0804430a34b4f9e4',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling openmax_dl
   # and whatever else without interference from each other.
   'openmax_dl_revision': '7acede9c039ea5d14cf326f44aad1245b9e674a7',
@@ skipping 48 matching lines @@
     Var('chromium_git') + '/chromium/deps/libjpeg_turbo.git' + '@' + 'a1750dbc79a8792dde3d3f7d7d8ac28ba01ac9dd',
   'src/third_party/libsrtp':
    Var('chromium_git') + '/chromium/deps/libsrtp.git' + '@' + '1d45b8e599dc2db6ea3ae22dbc94a8c504652423',
   'src/third_party/libvpx/source/libvpx':
     Var('chromium_git') + '/webm/libvpx.git' + '@' +  '9a2dd7e67ed20a7389db618f1a8a25d5b3a3c89c',
   'src/third_party/libyuv':
     Var('chromium_git') + '/libyuv/libyuv.git' + '@' + '27036e33e86c9ce3b5087d55c18bf04964343c60',
   'src/third_party/openh264/src':
     Var('chromium_git') + '/external/github.com/cisco/openh264' + '@' + '0fd88df93c5dcaf858c57eb7892bd27763f0f0ac',
   'src/third_party/openmax_dl':
-    Var('chromium_git') + '/external/webrtc/deps/third_party/openmax.git' + '@' +  Var('openmax_dl_revision'),
+    Var('webrtc_git') + '/deps/third_party/openmax.git' + '@' +  Var('openmax_dl_revision'),
   'src/third_party/usrsctp/usrsctplib':
     Var('chromium_git') + '/external/github.com/sctplab/usrsctp' + '@' + 'f4819e1b177f7bfdd761c147f5a649b9f1a78c06',
   'src/third_party/yasm/source/patched-yasm':
     Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + 'b98114e18d8b9b84586b10d24353ab8616d4c5fc',
   'src/tools':
     Var('chromium_git') + '/chromium/src/tools' + '@' + 'e2203ba97907eeb490035c7a271c114f793c3031',
   'src/tools/gyp':
     Var('chromium_git') + '/external/gyp.git' + '@' + 'd61a9397e668fa9843c4aa7da9e79460fe590bfb',
   'src/tools/swarming_client':
     Var('chromium_git') + '/infra/luci/client-py.git' + '@' +  Var('swarming_revision'),
   # WebRTC-only dependencies (not present in Chromium).
   'src/third_party/gflags':
-    Var('chromium_git') + '/external/webrtc/deps/third_party/gflags' + '@' + '892576179b45861b53e04a112996a738309cf364',
+    Var('webrtc_git') + '/deps/third_party/gflags' + '@' + '892576179b45861b53e04a112996a738309cf364',
   'src/third_party/gflags/src':
     Var('chromium_git') + '/external/github.com/gflags/gflags' + '@' + '03bebcb065c83beff83d50ae025a55a4bf94dfca',
   'src/third_party/gtest-parallel':
     Var('chromium_git') + '/external/github.com/google/gtest-parallel' + '@' + '76767784389ed944027630759723b7d142cf2a5e',
 }
 deps_os = {
   'android': {
     'src/third_party/android_tools':
       Var('chromium_git') + '/android_tools.git' + '@' + 'aadb2fed04af8606545b0afe4e3060bc1a15fad7',
     'src/third_party/ced/src':
@@ skipping 26 matching lines @@
   'unix': {
     'src/third_party/lss':
       Var('chromium_git') + '/linux-syscall-support.git' + '@' + Var('lss_revision'),
   },
   'win': {
     # Dependencies used by libjpeg-turbo
     'src/third_party/yasm/binaries':
       Var('chromium_git') + '/chromium/deps/yasm/binaries.git' + '@' + '52f9b3f4b0aa06da24ef8b123058bb61ee468881',
     # WebRTC-only dependency (not present in Chromium).
     'src/third_party/winsdk_samples':
-      Var('chromium_git') + '/external/webrtc/deps/third_party/winsdk_samples_v71' + '@' + '2d31a1cbecc86359e6ec041fb9ff6c082babd073',
+      Var('webrtc_git') + '/deps/third_party/winsdk_samples_v71' + '@' + '2d31a1cbecc86359e6ec041fb9ff6c082babd073',
   },
 }
 
 hooks = [
   {
     # This clobbers when necessary (based on get_landmines.py). It should be
     # an early hook but it will need to be run after syncing Chromium and
     # setting up the links, so the script actually exists.
     'name': 'landmines',
     'pattern': '.',
@@ skipping 390 matching lines @@
       ],
     },
   ],
 }
 recursedeps = [
   # buildtools provides clang_format, libc++, and libc++abi.
   'src/buildtools',
   # android_tools manages the NDK.
   'src/third_party/android_tools',
 ]