DevTools: Display pixel value in Device Emulation

Source/devtools/front_end/OverridesView.js

Index: Source/devtools/front_end/OverridesView.js
diff --git a/Source/devtools/front_end/OverridesView.js b/Source/devtools/front_end/OverridesView.js
index 686e70050e8dae82ec7b1a78604219f9146050d7..a4a39c5dadaf72ee6a196dcb4ed70d9e677ec82a 100644
--- a/Source/devtools/front_end/OverridesView.js
+++ b/Source/devtools/front_end/OverridesView.js
@@ -573,6 +573,7 @@ WebInspector.OverridesView.ViewportTab.prototype = {
         this._widthRangeInput.min = 100;
         this._widthRangeInput.max = 2000;
         this._widthRangeInput.addEventListener("change", this._rangeValueChanged.bind(this), false);
+        this._widthRangeInput.addEventListener("input", this._rangeValueChanged.bind(this), false);
         this._widthRangeInput.value = this._widthOverrideElement.value;
 
         rowElement = tableElement.createChild("tr");