Reland of Base webrtc fuzzers on a template. (patchset #1 id:1 of https://codereview.webrtc.org/1528043002/ )

Reason for revert:
Found missing public_configs that broke Chromium libfuzzer build.

Original issue's description:
> Revert of Base webrtc fuzzers on a template. (patchset #1 id:1 of https://codereview.webrtc.org/1524993002/ )
>
> Reason for revert:
> Suspect this is breaking the build:
> https://build.chromium.org/p/chromium.fyi/builders/Libfuzzer%20Upload%20Linux/builds/1576/steps/compile/logs/stdio
>
> Original issue's description:
> > Base webrtc fuzzers on a template.
> >
> > Removes noisy dependencies on webrtc_fuzzer_main and removal of
> > find_bad_constructs, removes 1-6 lines of gn per fuzzer target.
> >
> > BUG=webrtc:4771
> > R=kjellander@webrtc.org
> >
> > Committed: https://crrev.com/5ea3da2cbbb0710f9617fb0627c0c4258437b09f
> > Cr-Commit-Position: refs/heads/master@{#11022}
>
> TBR=kjellander@webrtc.org,pbos@webrtc.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:4771
>
> Committed: https://crrev.com/5e0218c66e0686dd00719f1e53f844efa94c9f42
> Cr-Commit-Position: refs/heads/master@{#11032}

TBR=kjellander@webrtc.org,tommi@webrtc.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:4771

Review URL: https://codereview.webrtc.org/1522003005 .

Cr-Original-Commit-Position: refs/heads/master@{#11035}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 78315b9813382a98b85294b097aa6a690743abaf
2 files changed