[DevTools] Fix emulation drawer button styles.

Source/devtools/front_end/toolbox/OverridesUI.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 WebInspector.OverridesUI = {}
 
 /**
  * @param {!Document} document
  * @param {!function(!function(string))=} titleProvider
  * @return {!Element}
  */
 WebInspector.OverridesUI.createDeviceSelect = function(document, titleProvider)
 {
     var p = document.createElement("p");
 
     var deviceSelectElement = p.createChild("select");
     deviceSelectElement.addEventListener("change", deviceSelected, false);
 
-    var saveButton = p.createChild("button", "save-device-button");
+    var saveButton = p.createChild("button");
     saveButton.textContent = WebInspector.UIString("Save as");
     saveButton.addEventListener("click", saveClicked, false);
 
-    var removeButton = p.createChild("button", "remove-device-button");
+    var removeButton = p.createChild("button");
     removeButton.textContent = WebInspector.UIString("Remove");
     removeButton.addEventListener("click", removeClicked, false);
 
     // This has to be object, not boolean, otherwise its value doesn't update properly.
     var emulatedSettingChangedMuted = { muted: false };
     WebInspector.overridesSupport.settings.emulateResolution.addChangeListener(emulatedSettingChanged);
     WebInspector.overridesSupport.settings.deviceWidth.addChangeListener(emulatedSettingChanged);
     WebInspector.overridesSupport.settings.deviceHeight.addChangeListener(emulatedSettingChanged);
     WebInspector.overridesSupport.settings.deviceScaleFactor.addChangeListener(emulatedSettingChanged);
     WebInspector.overridesSupport.settings.emulateMobile.addChangeListener(emulatedSettingChanged);
@@ skipping 242 matching lines @@
 /** @type {!Array.<!WebInspector.OverridesSupport.NetworkConditionsPreset>} */
 WebInspector.OverridesUI._networkConditionsPresets = [
     {id: "offline", title: "Offline", throughput: 0, latency: 0},
     {id: "gprs", title: "GPRS", throughput: 50, latency: 500},
     {id: "edge", title: "EDGE", throughput: 250, latency: 300},
     {id: "3g", title: "3G", throughput: 750, latency: 100},
     {id: "dsl", title: "DSL", throughput: 2 * 1024, latency: 5},
     {id: "wifi", title: "WiFi", throughput: 30 * 1024, latency: 2},
     {id: "online", title: "No throttling", throughput: WebInspector.OverridesSupport.NetworkThroughputUnlimitedValue, latency: 0}
 ];