Add filtering by priority in the Network filter area.

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

Index: third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
index 3865db6055602f5ab6d2839ed69cc7674172d6fa..b658aac88e626a33a97d4ddcdb2eab1a32082704 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
@@ -213,6 +213,15 @@ Network.NetworkLogView = class extends UI.VBox {
    * @param {!SDK.NetworkRequest} request
    * @return {boolean}
    */
+  static _requestPriorityFilter(value, request) {
+    return request.initialPriority() === Components.getPriorityByPriorityLabel(value);
+  }
+
+  /**
+   * @param {string} value
+   * @param {!SDK.NetworkRequest} request
+   * @return {boolean}
+   */
   static _requestMimeTypeFilter(value, request) {
     return request.mimeType === value;
   }
@@ -947,6 +956,7 @@ Network.NetworkLogView = class extends UI.VBox {
     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());
 
     if (request.mixedContentType !== 'none') {
       this._suggestionBuilder.addItem(
@@ -1457,6 +1467,9 @@ Network.NetworkLogView = class extends UI.VBox {
       case Network.NetworkLogView.FilterType.SetCookieValue:
         return Network.NetworkLogView._requestSetCookieValueFilter.bind(null, value);
 
+      case Network.NetworkLogView.FilterType.Priority:
+        return Network.NetworkLogView._requestPriorityFilter.bind(null, value);
+
       case Network.NetworkLogView.FilterType.StatusCode:
         return Network.NetworkLogView._statusCodeFilter.bind(null, value);
     }
@@ -1693,6 +1706,7 @@ Network.NetworkLogView.FilterType = {
   Method: 'method',
   MimeType: 'mime-type',
   MixedContent: 'mixed-content',
+  Priority: 'priority',
   Scheme: 'scheme',
   SetCookieDomain: 'set-cookie-domain',
   SetCookieName: 'set-cookie-name',