DevTools: reformat front-end code to match chromium style.

third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js

Index: third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js b/third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js
index 4a74ea42865e4543a28ed9e0b7eee2031d4f6678..8ae0ec07e6eb7fc865bcd4618e3eb7df393d9ff9 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui/EmptyWidget.js
@@ -27,33 +27,28 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 /**
- * @constructor
- * @extends {WebInspector.VBox}
+ * @unrestricted
  */
-WebInspector.EmptyWidget = function(text)
-{
-    WebInspector.VBox.call(this);
-    this.registerRequiredCSS("ui/emptyWidget.css");
-    this.element.classList.add("empty-view");
-    this.textElement = this.element.createChild("span");
+WebInspector.EmptyWidget = class extends WebInspector.VBox {
+  constructor(text) {
+    super();
+    this.registerRequiredCSS('ui/emptyWidget.css');
+    this.element.classList.add('empty-view');
+    this.textElement = this.element.createChild('span');
     this._text = text;
-};
-
-WebInspector.EmptyWidget.prototype = {
-    wasShown: function()
-    {
-        this.textElement.textContent = this._text;
-    },
+  }
 
-    set text(text)
-    {
-        this._text = text;
-        if (this.isShowing())
-            this.textElement.textContent = this._text;
-    },
+  /**
+   * @override
+   */
+  wasShown() {
+    this.textElement.textContent = this._text;
+  }
 
-    __proto__: WebInspector.VBox.prototype
+  set text(text) {
+    this._text = text;
+    if (this.isShowing())
+      this.textElement.textContent = this._text;
+  }
 };
-