Added functionality to chrome://net-internals/#chromeos page that user

chrome/browser/resources/net_internals/browser_bridge.js

Index: chrome/browser/resources/net_internals/browser_bridge.js
diff --git a/chrome/browser/resources/net_internals/browser_bridge.js b/chrome/browser/resources/net_internals/browser_bridge.js
index 7353b453181f7d1b55a52bc465964ae68fd6c376..41694732a3caf1b19e41ea75cabe48b9b01f7fec 100644
--- a/chrome/browser/resources/net_internals/browser_bridge.js
+++ b/chrome/browser/resources/net_internals/browser_bridge.js
@@ -26,6 +26,7 @@ var BrowserBridge = (function() {
     this.httpThrottlingObservers_ = [];
     this.constantsObservers_ = [];
     this.crosONCFileParseObservers_ = [];
+    this.setNetworkDebugModeObservers_ = [];
 
     this.pollableDataHelpers_ = {};
     this.pollableDataHelpers_.proxySettings =
@@ -233,6 +234,10 @@ var BrowserBridge = (function() {
       this.send('importONCFile', [fileContent, passcode]);
     },
 
+    setNetworkDebugMode: function(subsystem) {
+      this.send('setNetworkDebugMode', [subsystem]);
+    },
+
     sendGetHttpPipeliningStatus: function() {
       this.send('getHttpPipeliningStatus');
     },
@@ -325,6 +330,11 @@ var BrowserBridge = (function() {
         this.crosONCFileParseObservers_[i].onONCFileParse(error);
     },
 
+    receivedSetNetworkDebugMode: function(status) {
+      for (var i = 0; i < this.setNetworkDebugModeObservers_.length; i++)
+        this.setNetworkDebugModeObservers_[i].onSetNetworkDebugMode(status);
+    },
+
     receivedHttpCacheInfo: function(info) {
       this.pollableDataHelpers_.httpCacheInfo.update(info);
     },
@@ -521,6 +531,16 @@ var BrowserBridge = (function() {
     },
 
     /**
+     * Adds a listener for network debugging mode status. The observer
+     * will be called back with:
+     *
+     *   observer.onSetNetworkDebugMode(status);
+     */
+    addSetNetworkDebugModeObserver: function(observer) {
+      this.setNetworkDebugModeObservers_.push(observer);
+    },
+
+    /**
      * Adds a listener for HTTP throttling-related events. |observer| will be
      * called back when HTTP throttling is enabled/disabled, through:
      *