Switch to absl single target when building with Chromium.

The //third_party/abseil-cpp:absl target is currently a group that
depends on all the targets needed by WebRTC in Chromium.

It will be switched to a component starting from
https://chromium-review.googlesource.com/c/chromium/src/+/2174434.

Bug: chromium:1046390
Change-Id: I70d450fdbfa895084b481c9884b6361d2fb9580d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176901
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31498}
diff --git a/rtc_tools/BUILD.gn b/rtc_tools/BUILD.gn
index d833f0a..b8158f6 100644
--- a/rtc_tools/BUILD.gn
+++ b/rtc_tools/BUILD.gn
@@ -17,12 +17,12 @@
   deps = [
     ":frame_analyzer",
     ":video_file_reader",
-    ":video_quality_analysis",
   ]
   if (!build_with_chromium) {
     deps += [
       ":psnr_ssim_analyzer",
       ":rgba_to_i420_converter",
+      ":video_quality_analysis",
     ]
     if (rtc_enable_protobuf) {
       deps += [ ":chart_proto" ]