Removed old media-internals page and rewrote it.

content/browser/resources/media/new/log_painter.js

+// Copyright (c) 2012 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.
+
+
+var logPainter = (function () {
+  "use strict";
+
+  var logPainter = {};
+
+  // Creates a filter function for filtering the logs.
+  function genFilterFun(text) {
+    if (text.trim().length === 0) {
+      return function () {
+        return true;
+      };
+    }
+
+    var split = text.split(",");
+    var trimmed = split.map(function (x) {
+      return x.trim().toLowerCase();
+    });
+
+    return function (x) {
+      return trimmed.indexOf(x.key.trim().toLowerCase()) !== -1;
+    };
+  }
+
+  logPainter.paintNew = function (playerInfo, div, properties) {
+    // Make sure that we don't have anything else inside.
+    removeChildren(div);
+    var table = makeTable("Timestamp", "Key", "Value");
+    var filterFun = genFilterFun(properties.filterText);
+
+    var logEntries = playerInfo.allEvents;
+    logEntries = logEntries.filter(filterFun);
+
+    playerInfo.lastRendered = playerInfo.allEvents.length;
+
+    logEntries.forEach(function (entry) {
+      appendRow(table, genLogRow(entry));
+    });
+
+    div.appendChild(table);
+  };
+
+  logPainter.paintExist = function (playerInfo, div, properties) {
+    // Find the existing table
+    var table = div.querySelector("table");
+    var filterFun = genFilterFun(properties.filterText);
+
+    // Cut off all the events that we've already rendered
+    var logEntries = playerInfo.allEvents.slice(playerInfo.lastRendered);
+    logEntries = logEntries.filter(filterFun);
+
+    // Set the last rendered property so we
+    // slice at the right place next time
+    playerInfo.lastRendered = playerInfo.allEvents.length;
+
+    logEntries.forEach(function (entry) {
+      appendRow(table, genLogRow(entry));
+    });
+  };
+
+  logPainter.invalidate = function (playerInfo) {
+    playerInfo.lastRendered = 0;
+  };
+
+  return logPainter;
+}());