Remove interface probing for IPv6 support from HostResolverImpl

chrome/browser/resources/net_internals/dns_view.js

Index: chrome/browser/resources/net_internals/dns_view.js
diff --git a/chrome/browser/resources/net_internals/dns_view.js b/chrome/browser/resources/net_internals/dns_view.js
index df96558254dbe26da173e78b24f5152d1f9ded54..806668f323263f3e302316fee5ba24a14aa019f7 100644
--- a/chrome/browser/resources/net_internals/dns_view.js
+++ b/chrome/browser/resources/net_internals/dns_view.js
@@ -34,16 +34,9 @@ var DnsView = (function() {
 
     $(DnsView.ENABLE_IPV6_BUTTON_ID).onclick =
         g_browser.enableIPv6.bind(g_browser);
-    $(DnsView.IPV6_PROBE_BUTTON_ID).onclick = this.runIPv6Probe_.bind(this);
     $(DnsView.CLEAR_CACHE_BUTTON_ID).onclick =
         g_browser.sendClearHostResolverCache.bind(g_browser);
 
-    // Used to track IPv6 probes.
-    EventsTracker.getInstance().addLogEntryObserver(this);
-    // ID of most recently started IPv6 probe job.  Once the job completes,
-    // set back to -1.
-    this.ipv6ProbeJobSourceId_ = -1;
-
     // Register to receive changes to the host resolver info.
     g_browser.addHostResolverInfoObserver(this, false);
   }
@@ -58,10 +51,6 @@ var DnsView = (function() {
   DnsView.IPV6_DISABLED_SPAN_ID = 'dns-view-ipv6-disabled';
   DnsView.ENABLE_IPV6_BUTTON_ID = 'dns-view-enable-ipv6';
 
-  DnsView.IPV6_PROBE_RUNNING_SPAN_ID = 'dns-view-ipv6-probe-running';
-  DnsView.IPV6_PROBE_COMPLETE_SPAN_ID = 'dns-view-ipv6-probe-complete';
-  DnsView.IPV6_PROBE_BUTTON_ID = 'dns-view-run-ipv6-probe';
-
   DnsView.INTERNAL_DNS_ENABLED_SPAN_ID = 'dns-view-internal-dns-enabled';
   DnsView.INTERNAL_DNS_INVALID_CONFIG_SPAN_ID =
       'dns-view-internal-dns-invalid-config';
@@ -80,12 +69,6 @@ var DnsView = (function() {
     // Inherit the superclass's methods.
     __proto__: superClass.prototype,
 
-    onLoadLogStart: function(polledData, tabData, logDump) {
-      // Clear information on whether or not an IPv6 probe is running.  Needs
-      // to be done before loading the events.
-      this.setIPv6ProbeJobLookupRunning_(false, -1);
-    },
-
     onLoadLogFinish: function(data) {
       return this.onHostResolverInfoChanged(data.hostResolverInfo);
     },
@@ -165,54 +148,6 @@ var DnsView = (function() {
       $(DnsView.EXPIRED_SPAN_ID).innerText = expiredEntries;
       return true;
     },
-
-    /**
-     * Must be called whenever an IPv6 probe job starts or stops running.
-     * @param {bool} running True if a probe job is running.
-     * @param {sourceId} sourceId Source ID of the running probe job, if there
-     *     is one.  -1 if |running| is false or we don't yet have the ID.
-     */
-    setIPv6ProbeJobLookupRunning_: function(running, sourceId) {
-      setNodeDisplay($(DnsView.IPV6_PROBE_RUNNING_SPAN_ID), running);
-      setNodeDisplay($(DnsView.IPV6_PROBE_COMPLETE_SPAN_ID), !running);
-      this.ipv6ProbeJobSourceId_ = sourceId;
-    },
-
-    /**
-     * Triggers a new IPv6 probe and displays the probe running message.
-     */
-    runIPv6Probe_: function() {
-      // Since there's no source ID yet, have to just use -1.  We'll get the
-      // ID when we see the start event for the probe.
-      this.setIPv6ProbeJobLookupRunning_(true, -1);
-      g_browser.sendRunIPv6Probe();
-    },
-
-    onReceivedLogEntries: function(logEntries) {
-      for (var i = 0; i < logEntries.length; ++i) {
-        if (logEntries[i].source.type != EventSourceType.IPV6_PROBE_JOB ||
-            logEntries[i].type != EventType.IPV6_PROBE_RUNNING) {
-          continue;
-        }
-
-        // For IPV6_PROBE_JOB events, update the display depending on whether or
-        // not a probe job is running.  Only track the most recently started
-        // probe job, as it will cancel any older jobs.
-        if (logEntries[i].phase == EventPhase.PHASE_BEGIN) {
-          this.setIPv6ProbeJobLookupRunning_(true, logEntries[i].source.id);
-        } else if (logEntries[i].source.id == this.ipv6ProbeJobSourceId_) {
-          this.setIPv6ProbeJobLookupRunning_(false, -1);
-          g_browser.sendGetHostResolverInfo();
-        }
-      }
-    },
-
-    /**
-     * Since the only thing that matters is the source ID of the active probe
-     * job, which clearing events doesn't change, do nothing.
-     */
-    onAllLogEntriesDeleted: function() {
-    },
   };
 
   /**