[DevTools] Move network throttling to network panel.

Source/devtools/front_end/sdk/NetworkManager.js

Index: Source/devtools/front_end/sdk/NetworkManager.js
diff --git a/Source/devtools/front_end/sdk/NetworkManager.js b/Source/devtools/front_end/sdk/NetworkManager.js
index 6f3fcbe1083ecf86f9c89f7e046df661a51783cb..f23e4766967ec3fc120e9a0cd4fa7c7e2b08ec03 100644
--- a/Source/devtools/front_end/sdk/NetworkManager.js
+++ b/Source/devtools/front_end/sdk/NetworkManager.js
@@ -44,6 +44,7 @@ WebInspector.NetworkManager = function(target)
         this._networkAgent.setCacheDisabled(true);
     if (WebInspector.moduleSetting("monitoringXHREnabled").get())
         this._networkAgent.setMonitoringXHREnabled(true);
+    this._initNetworkConditions();
     this._networkAgent.enable();
 
     WebInspector.moduleSetting("cacheDisabled").addChangeListener(this._cacheDisabledSettingChanged, this);
@@ -67,6 +68,9 @@ WebInspector.NetworkManager._MIMETypes = {
     "text/vtt":                    {"texttrack": true},
 }
 
+/** @typedef {{throughput: number, latency: number}} */
+WebInspector.NetworkManager.Conditions;
+
 WebInspector.NetworkManager.prototype = {
     /**
      * @param {string} url
@@ -101,6 +105,46 @@ WebInspector.NetworkManager.prototype = {
         this._networkAgent.clearBrowserCookies();
     },
 
+    _initNetworkConditions: function()
+    {
+        this._networkAgent.canEmulateNetworkConditions(callback.bind(this));
+
+        /**
+         * @this {WebInspector.NetworkManager}
+         */
+        function callback(error, canEmulate)
+        {
+            if (error || !canEmulate)
+                return;
+            WebInspector.moduleSetting("networkConditions").addChangeListener(this._networkConditionsSettingChanged, this);
+            var conditions = WebInspector.moduleSetting("networkConditions").get();
+            if (conditions.throughput < 0)
+                return;
+            this._updateNetworkConditions(conditions);
+        }
+    },
+
+    /**
+     * @param {!WebInspector.NetworkManager.Conditions} conditions
+     */
+    _updateNetworkConditions: function(conditions)
+    {
+        if (conditions.throughput < 0) {
+            this._networkAgent.emulateNetworkConditions(false, 0, 0, 0);
+        } else {
+            var offline = !conditions.throughput && !conditions.latency;
+            this._networkAgent.emulateNetworkConditions(!!offline, conditions.latency, conditions.throughput, conditions.throughput);
+        }
+    },
+
+    /**
+     * @param {!WebInspector.Event} event
+     */
+    _networkConditionsSettingChanged: function(event)
+    {
+        this._updateNetworkConditions(/** @type {!WebInspector.NetworkManager.Conditions} */ (event.data));
+    },
+
     __proto__: WebInspector.SDKModel.prototype
 }
 
@@ -596,10 +640,6 @@ WebInspector.MultitargetNetworkManager.prototype = {
             networkAgent.setExtraHTTPHeaders(this._extraHeaders);
         if (typeof this._userAgent !== "undefined")
             networkAgent.setUserAgentOverride(this._userAgent);
-        if (this._networkConditions) {
-            networkAgent.emulateNetworkConditions(this._networkConditions.offline, this._networkConditions.latency,
-                this._networkConditions.throughput, this._networkConditions.throughput);
-        }
     },
 
     /**
@@ -629,20 +669,6 @@ WebInspector.MultitargetNetworkManager.prototype = {
         this._userAgent = userAgent;
         for (var target of WebInspector.targetManager.targets())
             target.networkAgent().setUserAgentOverride(this._userAgent);
-    },
-
-    /**
-     * @param {boolean} offline
-     * @param {number} latency
-     * @param {number} throughput
-     */
-    emulateNetworkConditions: function(offline, latency, throughput)
-    {
-        this._networkConditions = { offline: offline, latency: latency, throughput: throughput };
-        for (var target of WebInspector.targetManager.targets()) {
-            target.networkAgent().emulateNetworkConditions(this._networkConditions.offline, this._networkConditions.latency,
-                this._networkConditions.throughput, this._networkConditions.throughput);
-        }
     }
 }