Update 3538 DEPS for M70 branching

Change-Id: I771913faa8dc94b6a426d69045eac86e8e6959e0
Reviewed-on: https://chromium-review.googlesource.com/1199926
Reviewed-by: Michael Moss <mmoss@chromium.org>
Cr-Commit-Position: refs/branch-heads/3538@{#6}
Cr-Branched-From: 79f7c91-refs/heads/master@{#587811}

DEPS

@@ -105,11 +105,11 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '7ed0eae0cd13d3d687f7855b0620a0faad2ab5b3',
+  'skia_revision': 'refs/heads/chrome/m70',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.
-  'v8_revision': 'refs/heads/chromium/3538',
+  'v8_revision': 'refs/heads/7.0-lkgr',
   # 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.
@@ -1098,7 +1098,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7ca87fb1d3da3b3d2060886e8c58e726d74c8219',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'f18b35284288ac851b77db88df3e2e8d2273db97',
+    Var('webrtc_git') + '/src.git' + '@' + 'refs/branch-heads/70',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',