Reland "Remove unnecessary dependency on base."

This reverts commit b3bac5ec26d7679b9e3b74b24f0859548a354cb4.

Reason for revert: Turns out this patch was innocent.

> Original change's description:
> > Remove unnecessary dependency on base.
> > 
> > Why this dep is here is lost to history. Everything works
> > without it though.
> > 
> > Bug: webrtc:8821
> > Change-Id: Ie0d763fb8a6508f7177a2f4bc9b7d909b9b02eb6
> > Reviewed-on: https://webrtc-review.googlesource.com/61962
> > Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#22441}
> 

TBR=phoglund@google.com,phoglund@webrtc.org,mbonadei@webrtc.org

Change-Id: I557d7e804c1a22d08a5418ce017f0e56e03a8449
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:8821
Reviewed-on: https://webrtc-review.googlesource.com/62000
Reviewed-by: Patrik Höglund <phoglund@google.com>
Commit-Queue: Patrik Höglund <phoglund@google.com>
Cr-Commit-Position: refs/heads/master@{#22447}
diff --git a/test/BUILD.gn b/test/BUILD.gn
index 6f0605b..b866c63 100644
--- a/test/BUILD.gn
+++ b/test/BUILD.gn
@@ -199,10 +199,6 @@
     suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
   }
 
-  if (is_android) {
-    deps += [ "//base:base" ]
-  }
-
   if (is_ios && !build_with_chromium) {
     deps += [ "../sdk:common_objc" ]
   }