Pull third_party/catapult from chromium.googlesource.com.

Same change as https://crrev.com/504882

TBR=tsepez@chromium.org

Change-Id: I243e3c95bb593ae5cd2247765b6db9bcdff9ee9c
Reviewed-on: https://pdfium-review.googlesource.com/c/47760
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 84b570f..e6797a2 100644
--- a/DEPS
+++ b/DEPS
@@ -120,9 +120,7 @@
     "third_party/android_ndk":
       Var('chromium_git') + "/android_ndk.git@" + Var('android_ndk_revision'),
     "third_party/catapult":
-      Var('chromium_git') +
-          "/external/github.com/catapult-project/catapult.git@" +
-          Var('catapult_revision'),
+      Var('chromium_git') + '/catapult.git' + '@' + Var('catapult_revision'),
   },
   "win": {
     "v8/third_party/cygwin":