Add filtering by priority in the Network filter area.

third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 195 matching lines @@
    */
   static _requestMethodFilter(value, request) {
     return request.requestMethod === value;
   }
 
   /**
    * @param {string} value
    * @param {!SDK.NetworkRequest} request
    * @return {boolean}
    */
+  static _requestPriorityFilter(value, request) {
+    return request.initialPriority() === Components.priorityByUiLabel(value);

[allada, 2016/12/17 01:20:20]

We should then be able to directly compare (if we do below suggestion) and this
will make less calls to Component's function. eg:

request.initialPriority() === value.

+  }
+
+  /**
+   * @param {string} value
+   * @param {!SDK.NetworkRequest} request
+   * @return {boolean}
+   */
   static _requestMimeTypeFilter(value, request) {
     return request.mimeType === value;
   }
 
   /**
    * @param {!Network.NetworkLogView.MixedContentFilterValues} value
    * @param {!SDK.NetworkRequest} request
    * @return {boolean}
    */
   static _requestMixedContentFilter(value, request) {
@@ skipping 714 matching lines @@
     if (!this._nodesByRequestId.get(request.requestId))
       return;
 
     Network.NetworkLogView._subdomains(request.domain)
         .forEach(
             this._suggestionBuilder.addItem.bind(this._suggestionBuilder, Network.NetworkLogView.FilterType.Domain));
     this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.Method, request.requestMethod);
     this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.MimeType, request.mimeType);
     this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.Scheme, '' + request.scheme);
     this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.StatusCode, '' + request.statusCode);
+    this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.Priority, request.initialPriority());

[allada, 2016/12/17 01:20:20]

Lets change this to:

this._suggestionBuilder.addItem(Network.NetworkLogView.FilterType.Priority,
Components.uiLabelForPriority(request.initialPriority()));

 
     if (request.mixedContentType !== 'none') {
       this._suggestionBuilder.addItem(
           Network.NetworkLogView.FilterType.MixedContent, Network.NetworkLogView.MixedContentFilterValues.All);
     }
 
     if (request.mixedContentType === 'optionally-blockable') {
       this._suggestionBuilder.addItem(
           Network.NetworkLogView.FilterType.MixedContent, Network.NetworkLogView.MixedContentFilterValues.Displayed);
     }
@@ skipping 490 matching lines @@
 
       case Network.NetworkLogView.FilterType.SetCookieDomain:
         return Network.NetworkLogView._requestSetCookieDomainFilter.bind(null, value);
 
       case Network.NetworkLogView.FilterType.SetCookieName:
         return Network.NetworkLogView._requestSetCookieNameFilter.bind(null, value);
 
       case Network.NetworkLogView.FilterType.SetCookieValue:
         return Network.NetworkLogView._requestSetCookieValueFilter.bind(null, value);
 
+      case Network.NetworkLogView.FilterType.Priority:
+        return Network.NetworkLogView._requestPriorityFilter.bind(null, value);

[allada, 2016/12/17 01:20:20]

Lets bind value to the NetworkPriority item:

return Network.NetworkLogView._requestPriorityFilter.bind(null,
Components.uiLabelToPriority(value));

+
       case Network.NetworkLogView.FilterType.StatusCode:
         return Network.NetworkLogView._statusCodeFilter.bind(null, value);
     }
     return null;
   }
 
   /**
    * @param {string} value
    * @return {?Network.NetworkLogView.Filter}
    */
@@ skipping 216 matching lines @@
 
 /** @enum {string} */
 Network.NetworkLogView.FilterType = {
   Domain: 'domain',
   HasResponseHeader: 'has-response-header',
   Is: 'is',
   LargerThan: 'larger-than',
   Method: 'method',
   MimeType: 'mime-type',
   MixedContent: 'mixed-content',
+  Priority: 'priority',
   Scheme: 'scheme',
   SetCookieDomain: 'set-cookie-domain',
   SetCookieName: 'set-cookie-name',
   SetCookieValue: 'set-cookie-value',
   StatusCode: 'status-code'
 };
 
 /** @enum {string} */
 Network.NetworkLogView.MixedContentFilterValues = {
   All: 'all',
   Displayed: 'displayed',
   Blocked: 'blocked',
   BlockOverridden: 'block-overridden'
 };
 
 /** @enum {string} */
 Network.NetworkLogView.IsFilterType = {
   Running: 'running',
   FromCache: 'from-cache'
 };
 
 /** @type {!Array<string>} */
 Network.NetworkLogView._searchKeys =
     Object.keys(Network.NetworkLogView.FilterType).map(key => Network.NetworkLogView.FilterType[key]);
 
 /** @typedef {function(!SDK.NetworkRequest): boolean} */
 Network.NetworkLogView.Filter;