WebInspectorUI: Fix console warning/error icon for Chromium browser

With Chromium browser both icons are displayed 300x300px while
expected size is 16x16. This brakes the rest of top navigation bar

Directly set image size from JS in the same way as it is done for SVG glyphs

Author: asurdej-comcast

Source/WebInspectorUI/UserInterface/Views/ButtonNavigationItem.css

@@ -91,11 +91,6 @@
     color: var(--glyph-color-disabled);
 }
 
-.navigation-bar .item.button > img {
-    width: 100%;
-    height: 100%;
-}
-
 .navigation-bar .item.button.disabled > img {
     opacity: 0.3;
 }

Source/WebInspectorUI/UserInterface/Views/ButtonNavigationItem.js

@@ -226,6 +226,8 @@ WI.ButtonNavigationItem = class ButtonNavigationItem extends WI.NavigationItem
 
             case WI.ButtonNavigationItem.ImageType.IMG: {
                 let img = this.element.appendChild(document.createElement("img"));
+                img.style.width = this._imageWidth + "px";
+                img.style.height = this._imageHeight + "px";
                 img.src = this._image;
                 break;
             }