1 files changed, 0 insertions, 135 deletions
diff --git a/chromium/third_party/trace-viewer/src/tracing/importer/gzip_importer.js b/chromium/third_party/trace-viewer/src/tracing/importer/gzip_importer.js
deleted file mode 100644
index 2b5e8ca8283..00000000000
--- a/chromium/third_party/trace-viewer/src/tracing/importer/gzip_importer.js
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2013 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.
-
-'use strict';
-
-/**
- * @fileoverview GzipImporter inflates gzip compressed data and passes it along
- * to an actual importer.
- */
-base.require('tracing.importer.importer');
-base.require('tracing.trace_model');
-base.requireRawScript('../third_party/jszip/jszip.js');
-base.requireRawScript('../third_party/jszip/jszip-inflate.js');
-
-base.exportTo('tracing.importer', function() {
-
-  var Importer = tracing.importer.Importer;
-
-  var GZIP_HEADER_ID1 = 0x1f;
-  var GZIP_HEADER_ID2 = 0x8b;
-  var GZIP_DEFLATE_COMPRESSION = 8;
-
-  function GzipImporter(model, eventData) {
-    // Normalize the data into an Uint8Array.
-    if (typeof(eventData) === 'string' || eventData instanceof String) {
-      eventData = JSZip.utils.transformTo('uint8array', eventData);
-    } else if (eventData instanceof ArrayBuffer) {
-      eventData = new Uint8Array(eventData);
-    } else
-      throw new Error('Unknown gzip data format');
-    this.model_ = model;
-    this.gzipData_ = eventData;
-  }
-
-  /**
-   * @param {eventData} Possibly gzip compressed data as a string or an
-   *                    ArrayBuffer.
-   * @return {boolean} Whether obj looks like gzip compressed data.
-   */
-  GzipImporter.canImport = function(eventData) {
-    var header;
-    if (eventData instanceof ArrayBuffer)
-      header = new Uint8Array(eventData.slice(0, 3));
-    else if (typeof(eventData) === 'string' || eventData instanceof String) {
-      header = eventData.substring(0, 7);
-      header =
-          [header.charCodeAt(0), header.charCodeAt(1), header.charCodeAt(2)];
-    } else
-      return false;
-    return header[0] == GZIP_HEADER_ID1 &&
-        header[1] == GZIP_HEADER_ID2 &&
-        header[2] == GZIP_DEFLATE_COMPRESSION;
-  };
-
-  /**
-   * Inflates (decompresses) the data stored in the given gzip bitstream.
-   * @return {string} Inflated data.
-   */
-  GzipImporter.inflateGzipData_ = function(data) {
-    var position = 0;
-
-    function getByte() {
-      if (position >= data.length)
-        throw new Error('Unexpected end of gzip data');
-      return data[position++];
-    }
-
-    function getWord() {
-      var low = getByte();
-      var high = getByte();
-      return (high << 8) + low;
-    }
-
-    function skipBytes(amount) {
-      position += amount;
-    }
-
-    function skipZeroTerminatedString() {
-      while (getByte() != 0) {}
-    }
-
-    var id1 = getByte();
-    var id2 = getByte();
-    if (id1 !== GZIP_HEADER_ID1 || id2 !== GZIP_HEADER_ID2)
-      throw new Error('Not gzip data');
-    var compression_method = getByte();
-    if (compression_method !== GZIP_DEFLATE_COMPRESSION)
-      throw new Error('Unsupported compression method: ' + compression_method);
-    var flags = getByte();
-    var have_header_crc = flags & (1 << 1);
-    var have_extra_fields = flags & (1 << 2);
-    var have_file_name = flags & (1 << 3);
-    var have_comment = flags & (1 << 4);
-
-    // Skip modification time, extra flags and OS.
-    skipBytes(4 + 1 + 1);
-
-    // Skip remaining fields before compressed data.
-    if (have_extra_fields) {
-      var bytes_to_skip = getWord();
-      skipBytes(bytes_to_skip);
-    }
-    if (have_file_name)
-      skipZeroTerminatedString();
-    if (have_comment)
-      skipZeroTerminatedString();
-    if (have_header_crc)
-      getWord();
-
-    // Inflate the data using jszip.
-    var inflated_data =
-        JSZip.compressions['DEFLATE'].uncompress(data.subarray(position));
-    return JSZip.utils.transformTo('string', inflated_data);
-  },
-
-  GzipImporter.prototype = {
-    __proto__: Importer.prototype,
-
-    /**
-     * Called by the Model to extract subtraces from the event data. The
-     * subtraces are passed on to other importers that can recognize them.
-     */
-    extractSubtraces: function() {
-      var eventData = GzipImporter.inflateGzipData_(this.gzipData_);
-      return eventData ? [eventData] : [];
-    }
-  };
-
-  tracing.TraceModel.registerImporter(GzipImporter);
-
-  return {
-    GzipImporter: GzipImporter
-  };
-});