Remove bzip2 code since it is no longer being used.

chrome/common/bzip2_unittest.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#if defined(USE_SYSTEM_LIBBZ2)
-#include <bzlib.h>
-#else
-#include "third_party/bzip2/bzlib.h"
-#endif
-
-#include "base/basictypes.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-  class Bzip2Test : public testing::Test {
-  };
-};
-
-// This test does a simple round trip to test that the bzip2 library is
-// present and working.
-TEST(Bzip2Test, Roundtrip) {
-  char input[] = "Test Data, More Test Data, Even More Data of Test";
-  char output[256];
-
-  memset(output, 0, arraysize(output));
-
-  bz_stream stream;
-  stream.bzalloc = NULL;
-  stream.bzfree = NULL;
-  stream.opaque = NULL;
-  int result = BZ2_bzCompressInit(&stream,
-                                  9,   // 900k block size
-                                  0,   // quiet
-                                  0);  // default work factor
-  ASSERT_EQ(BZ_OK, result);
-
-  stream.next_in = input;
-  stream.avail_in = arraysize(input) - 1;
-  stream.next_out = output;
-  stream.avail_out = arraysize(output);
-  do {
-    result = BZ2_bzCompress(&stream, BZ_FINISH);
-  } while (result == BZ_FINISH_OK);
-  ASSERT_EQ(BZ_STREAM_END, result);
-  result = BZ2_bzCompressEnd(&stream);
-  ASSERT_EQ(BZ_OK, result);
-  int written = stream.total_out_lo32;
-
-  // Make sure we wrote something; otherwise not sure what to expect
-  ASSERT_GT(written, 0);
-
-  // Now decompress and check that we got the same thing.
-  result = BZ2_bzDecompressInit(&stream, 0, 0);
-  ASSERT_EQ(BZ_OK, result);
-  char output2[256];
-  memset(output2, 0, arraysize(output2));
-
-  stream.next_in = output;
-  stream.avail_in = written;
-  stream.next_out = output2;
-  stream.avail_out = arraysize(output2);
-
-  do {
-    result = BZ2_bzDecompress(&stream);
-  } while (result == BZ_OK);
-  ASSERT_EQ(result, BZ_STREAM_END);
-  result = BZ2_bzDecompressEnd(&stream);
-  ASSERT_EQ(result, BZ_OK);
-
-  EXPECT_EQ(arraysize(input) - 1, stream.total_out_lo32);
-  EXPECT_STREQ(input, output2);
-}