Revert "ANDROID: Add simple fuzzing targets for video and video+audio encoding."

This reverts commit f2b9cbe96de02a2150cc3a1a24d2c1f3c95f6091.

Reason for revert: Build breakage.
Bug: 175637287

Change-Id: Iee3769f81fb3e21c16f685ad2f6cbb0ee4465b2f
diff --git a/fuzzing/Android.bp b/fuzzing/Android.bp
deleted file mode 100644
index 50da3e3..0000000
--- a/fuzzing/Android.bp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-cc_library {
-    name: "libwebm_mkvmuxer_fuzzer_common",
-    srcs: ["common.cpp"],
-    shared_libs: ["libwebm_mkvmuxer"],
-    host_supported: true,
-}
-
-cc_defaults {
-    name: "libwebm_mkvmuxer_fuzzer_defaults",
-    shared_libs: [
-        "libwebm_mkvmuxer_fuzzer_common",
-        "libwebm_mkvmuxer",
-    ],
-    host_supported: true,
-    fuzz_config: { componentid: 46263 },
-}
-
-cc_fuzz {
-    name: "libwebm_mkvmuxer_fuzzer_one_video_track",
-    srcs: ["mkvmuxer_one_video_track.cpp"],
-    defaults: ["libwebm_mkvmuxer_fuzzer_defaults"],
-}
-
-cc_fuzz {
-    name: "libwebm_mkvmuxer_fuzzer_one_video_audio_track",
-    srcs: ["mkvmuxer_one_video_audio_track.cpp"],
-    defaults: ["libwebm_mkvmuxer_fuzzer_defaults"],
-}
diff --git a/fuzzing/common.cpp b/fuzzing/common.cpp
deleted file mode 100644
index 5709673..0000000
--- a/fuzzing/common.cpp
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "fuzzing/common.h"
-
-using mkvmuxer::int32;
-using mkvmuxer::int64;
-using mkvmuxer::uint32;
-using mkvmuxer::uint64;
-
-DiscardingMkvWriter::DiscardingMkvWriter() : position_(0), checksum_(0) {}
-
-int32 DiscardingMkvWriter::Write(const void* buf, uint32 len) {
-  auto data = static_cast<const uint8_t*>(buf);
-  for (uint32 i = 0; i < len; i++) {
-    // Force reads on all data in buf so ASAN can validate it
-    checksum_ += data[i];
-  }
-  position_ += len;
-  return 0;
-}
-
-int64 DiscardingMkvWriter::Position() const {
-  return position_;
-}
-
-int32 DiscardingMkvWriter::Position(int64 position) {
-  position_ = position;
-  return 0;
-}
-
-bool DiscardingMkvWriter::Seekable() const {
-  return true;
-}
-
-void DiscardingMkvWriter::ElementStartNotify(uint64, int64) {
-}
-
-std::vector<uint8_t> FuzzerRandomLengthBytes(FuzzedDataProvider& fdp) {
-  // https://github.com/google/fuzzing/blob/master/docs/split-inputs.md#main-concepts
-  // ConsumeRandomLengthString is a good source of data, but we have to remove
-  // the null terminator to not hide off-by-one access errors.
-  std::string str = fdp.ConsumeRandomLengthString();
-  std::vector<uint8_t> data(str.begin(), str.end());
-  return data;
-}
diff --git a/fuzzing/common.h b/fuzzing/common.h
deleted file mode 100644
index b0f498e..0000000
--- a/fuzzing/common.h
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#pragma once
-
-#include <stdint.h>
-#include <vector>
-
-#include "mkvmuxer/mkvmuxer.h"
-#include "fuzzer/FuzzedDataProvider.h"
-
-class DiscardingMkvWriter : public mkvmuxer::IMkvWriter {
-public:
-  DiscardingMkvWriter();
-
-  mkvmuxer::int32 Write(const void* buf, mkvmuxer::uint32 len) override;
-  mkvmuxer::int64 Position() const override;
-  mkvmuxer::int32 Position(mkvmuxer::int64 position) override;
-  bool Seekable() const override;
-  void ElementStartNotify(mkvmuxer::uint64, mkvmuxer::int64) override;
-
-private:
-  mkvmuxer::int64 position_;
-  mkvmuxer::int64 checksum_;
-};
-
-std::vector<uint8_t> FuzzerRandomLengthBytes(FuzzedDataProvider&);
diff --git a/fuzzing/mkvmuxer_one_video_audio_track.cpp b/fuzzing/mkvmuxer_one_video_audio_track.cpp
deleted file mode 100644
index b51788a..0000000
--- a/fuzzing/mkvmuxer_one_video_audio_track.cpp
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <sstream>
-
-#include "fuzzer/FuzzedDataProvider.h"
-#include "mkvmuxer/mkvmuxer.h"
-#include "fuzzing/common.h"
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-  FuzzedDataProvider fdp(data, size);
-
-  mkvmuxer::Segment segment;
-  DiscardingMkvWriter writer;
-  segment.Init(&writer);
-
-  auto width = fdp.ConsumeIntegral<int32_t>();
-  auto height = fdp.ConsumeIntegral<int32_t>();
-
-  uint64_t video_track_number = segment.AddVideoTrack(width, height, 0);
-
-  if (video_track_number == 0) {
-    return 0;
-  }
-
-  auto sample_rate = fdp.ConsumeIntegral<int32_t>();
-  auto channels = fdp.ConsumeIntegral<int32_t>();
-
-  uint64_t audio_track_number = segment.AddAudioTrack(sample_rate, channels, 0);
-
-  if (audio_track_number == 0) {
-    return 0;
-  }
-
-  while (fdp.remaining_bytes() > 0) {
-    auto video_frame = FuzzerRandomLengthBytes(fdp);
-    segment.AddFrame(
-        video_frame.data(),
-        video_frame.size(),
-        video_track_number,
-        fdp.ConsumeIntegral<uint64_t>(),
-        fdp.ConsumeBool());
-
-    auto audio_frame = FuzzerRandomLengthBytes(fdp);
-    segment.AddFrame(
-        audio_frame.data(),
-        audio_frame.size(),
-        audio_track_number,
-        fdp.ConsumeIntegral<uint64_t>(),
-        fdp.ConsumeBool());
-  }
-
-  segment.Finalize();
-
-  return 0;
-}
diff --git a/fuzzing/mkvmuxer_one_video_track.cpp b/fuzzing/mkvmuxer_one_video_track.cpp
deleted file mode 100644
index b4f1bdc..0000000
--- a/fuzzing/mkvmuxer_one_video_track.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <sstream>
-
-#include "fuzzer/FuzzedDataProvider.h"
-#include "mkvmuxer/mkvmuxer.h"
-#include "fuzzing/common.h"
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-  FuzzedDataProvider fdp(data, size);
-
-  mkvmuxer::Segment segment;
-  DiscardingMkvWriter writer;
-  segment.Init(&writer);
-
-  int width = fdp.ConsumeIntegral<int>();
-  int height = fdp.ConsumeIntegral<int>();
-
-  uint64_t video_track_number = segment.AddVideoTrack(width, height, 0);
-
-  if (video_track_number == 0) {
-    return 0;
-  }
-
-  while (fdp.remaining_bytes() > 0) {
-    auto frame = FuzzerRandomLengthBytes(fdp);
-    segment.AddFrame(
-        frame.data(),
-        frame.size(),
-        video_track_number,
-        fdp.ConsumeIntegral<uint64_t>(),
-        fdp.ConsumeBool());
-  }
-
-  segment.Finalize();
-
-  return 0;
-}