Switch libcxx paths from trunk -> src.

Change-Id: I641178d11628fd526317bd0311db064c515deb0d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/144280
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Joanna Wang <jojwang@google.com>
diff --git a/DEPS b/DEPS
index f796067..3ad1516 100644
--- a/DEPS
+++ b/DEPS
@@ -86,7 +86,7 @@
   },
 
   # TODO(chromium:1458042): Remove these paths, when chromium builds files
-  # have moved to third_party/libcxx/lib*/trunk paths.
+  # have moved to third_party/lib*/src paths.
   'buildtools/third_party/libc++/trunk': {
     'url': '{chromium_git}/external/github.com/llvm/llvm-project/libcxx.git@0e4617cf8c09a8e2b6704a51a8a0a9560715cf70',
     'condition': 'dawn_standalone',
@@ -97,12 +97,12 @@
     'condition': 'dawn_standalone',
   },
 
-  'third_party/libcxx/libc++/trunk': {
+  'third_party/libc++/src': {
     'url': '{chromium_git}/external/github.com/llvm/llvm-project/libcxx.git@0e4617cf8c09a8e2b6704a51a8a0a9560715cf70',
     'condition': 'dawn_standalone',
   },
 
-  'third_party/libcxx/libc++abi/trunk': {
+  'third_party/libc++abi/src': {
     'url': '{chromium_git}/external/github.com/llvm/llvm-project/libcxxabi.git@307bd163607c315d46103ebe1d68aab44bf93986',
     'condition': 'dawn_standalone',
   },