[Devtools] Added Enable/Disable for request blocking in network

third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js

Index: third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js b/third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js
index e38c0457e2ed02ba16965e3b8d5b169cd457d78e..0ebd4ac566bdf3347f26703e35ca4d0476e28baf 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/BlockedURLsPane.js
@@ -24,6 +24,14 @@ Network.BlockedURLsPane = class extends UI.VBox {
     clearButton.addEventListener(UI.ToolbarButton.Events.Click, this._removeAll, this);
     this._toolbar.appendToolbarItem(clearButton);
 
+    var enableRequestBlockingCheckbox = new UI.ToolbarCheckbox(
+        Common.UIString('Enable Request Blocking'), Common.UIString('Enables request blocking'), undefined,
+        enableRequestBlockingChecked);
+    SDK.multitargetNetworkManager.on(
+        SDK.MultitargetNetworkManager.RequestBlockingEnabledChangedEvent,
+        event => enableRequestBlockingCheckbox.setChecked(event.enabled));
+    this._toolbar.appendToolbarItem(enableRequestBlockingCheckbox);
+
     this._emptyElement = this.contentElement.createChild('div', 'no-blocked-urls');
     this._emptyElement.createChild('span').textContent = Common.UIString('Requests are not blocked. ');
     var addLink = this._emptyElement.createChild('span', 'link');
@@ -42,6 +50,10 @@ Network.BlockedURLsPane = class extends UI.VBox {
     this._updateThrottler = new Common.Throttler(200);
 
     this._update();
+
+    function enableRequestBlockingChecked() {
+      SDK.multitargetNetworkManager.setRequestBlockingEnabled(enableRequestBlockingCheckbox.checked());
+    }
   }
 
   static reset() {