DevTools: Code fixes for the Closure compiler roll

Source/devtools/front_end/network/RequestView.js

Index: Source/devtools/front_end/network/RequestView.js
diff --git a/Source/devtools/front_end/network/RequestView.js b/Source/devtools/front_end/network/RequestView.js
index 0ad5ff1a71645058b6514aa93aaf4b9a701eada0..398931640f6f208fe54a19d7d02a60d813dd3993 100644
--- a/Source/devtools/front_end/network/RequestView.js
+++ b/Source/devtools/front_end/network/RequestView.js
@@ -56,18 +56,20 @@ WebInspector.RequestView.prototype = {
 
 /**
  * @param {!WebInspector.NetworkRequest} request
+ * @return {boolean}
  */
 WebInspector.RequestView.hasTextContent = function(request)
 {
     if (request.type.isTextType())
         return true;
     if (request.type === WebInspector.resourceTypes.Other || request.hasErrorStatusCode())
-        return request.content && !request.contentEncoded;
+        return !!request.content && !request.contentEncoded;
     return false;
 }
 
 /**
  * @param {!WebInspector.NetworkRequest} request
+ * @return {!WebInspector.View}
  */
 WebInspector.RequestView.nonSourceViewForRequest = function(request)
 {