Pull protobuf directly from android instead of our mirror

This was established back in 2014 when we were only cloning from
chromium.googlesource.com. Now that we're willing to pull from
many different googlesource hosts, there's no need to continue
using our mirror of this repo.

R=dpranke, nyquist

Change-Id: I638ed3221f20ff6bc139d83851e1c26d02ec8b8a
Reviewed-on: https://chromium-review.googlesource.com/930030
Reviewed-by: Tommy Nyquist <[email protected]>
Commit-Queue: Aaron Gable <[email protected]>
Cr-Commit-Position: refs/heads/master@{#538546}
diff --git a/DEPS b/DEPS
index b0a22cbb..c19b90b0 100644
--- a/DEPS
+++ b/DEPS
@@ -262,7 +262,7 @@
     Var('chromium_git') + '/external/github.com/KhronosGroup/SPIRV-Tools.git' + '@' + '9166854ac93ef81b026e943ccd230fed6c8b8d3c',
 
   'src/third_party/android_protobuf/src': {
-      'url': Var('chromium_git') + '/external/android_protobuf.git' + '@' + '7fca48d8ce97f7ba3ab8eea5c472f1ad3711762f',
+      'url': Var('android_git') + '/platform/external/protobuf.git' + '@' + '7fca48d8ce97f7ba3ab8eea5c472f1ad3711762f',
       'condition': 'checkout_android',
   },