Add data reduction proxy debug info to net-internals#bandwidth

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 8a90b98cf55839fc6962e442b5af469f09d10451..2cf2878a1a7c52e26c67389e158566c27d41a49a 100644
--- a/chrome/browser/resources/net_internals/browser_bridge.js
+++ b/chrome/browser/resources/net_internals/browser_bridge.js
@@ -79,6 +79,9 @@ var BrowserBridge = (function() {
           new PollableDataHelper('onSystemLogChanged',
                                this.getSystemLog.bind(this, 'syslog'));
     }
+    this.pollableDataHelpers_.dataReductionProxyInfo =
+        new PollableDataHelper('onDataReductionProxyInfoChanged',
+                               this.sendGetDataReductionProxyInfo.bind(this));
 
     // Setting this to true will cause messages from the browser to be ignored,
     // and no messages will be sent to the browser, either.  Intended for use
@@ -237,6 +240,11 @@ var BrowserBridge = (function() {
       this.send('setNetworkDebugMode', [subsystem]);
     },
 
+    sendGetDataReductionProxyInfo: function() {
+      this.send('getDataReductionProxyInfo');
+    },
+
+
     //--------------------------------------------------------------------------
     // Messages received from the browser.
     //--------------------------------------------------------------------------
@@ -358,6 +366,11 @@ var BrowserBridge = (function() {
       this.pollableDataHelpers_.systemLog.update(systemLog);
     },
 
+    receivedDataReductionProxyInfo: function(dataReductionProxyInfo) {
+      this.pollableDataHelpers_.dataReductionProxyInfo.update(
+          dataReductionProxyInfo);
+    },
+
     //--------------------------------------------------------------------------
 
     /**
@@ -547,6 +560,17 @@ var BrowserBridge = (function() {
     },
 
     /**
+     * Adds a listener of the data reduction proxy info. |observer| will be
+     * called back when data is received, through:
+     *
+     *   observer.onDataReductionProxyInfoChanged(dataReductionProxyInfo)
+     */
+    addDataReductionProxyInfoObserver: function(observer, ignoreWhenUnchanged) {
+      this.pollableDataHelpers_.dataReductionProxyInfo.addObserver(
+          observer, ignoreWhenUnchanged);
+    },
+
+    /**
      * Adds a listener for the results of HSTS (HTTPS Strict Transport Security)
      * queries. The observer will be called back with:
      *