Update DEPS to download the checked-in JDK.

This is required after [1] in oroder to unblock the Chromium Roll into
WebRTC [2].

This CL is inspired by what Chromium has done in [3].

[1] - https://chromium.googlesource.com/chromium/src/build/+/6b4dc5bfc3ef55e2b49dde123ea266d6d990499f
[2] - https://webrtc-review.googlesource.com/c/src/+/157187/
[3] - https://chromium-review.googlesource.com/c/chromium/src/+/1831011

Bug: None
Change-Id: I710e3076627742676887aab1e139e93824be8374
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/157302
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29513}
diff --git a/DEPS b/DEPS
index 075bbf5..128de11 100644
--- a/DEPS
+++ b/DEPS
@@ -156,6 +156,16 @@
     'url': 'https://chromium.googlesource.com/external/jsr-305.git@642c508235471f7220af6d5df2d3210e3bfc0919',
     'condition': 'checkout_android',
   },
+  'src/third_party/jdk': {
+      'packages': [
+          {
+              'package': 'chromium/third_party/jdk',
+              'version': 'rfJtuH296mzs7BYOgmQkpz-7ydXtpLKeO15qDDMaa5cC',
+          },
+      ],
+      'condition': 'host_os == "linux" and checkout_android',
+      'dep_type': 'cipd',
+  },
   'src/third_party/jsoncpp/source':
     'https://chromium.googlesource.com/external/github.com/open-source-parsers/jsoncpp.git@645250b6690785be60ab6780ce4b58698d884d11', # from svn 248
   'src/third_party/junit/src': {