Add filtering by priority in the Network filter area.

third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
index 4dbbcc9b8a5162f39d6c7b8b734cbeaf445ac20f..1b152fd0ec10cdf1bbf5cddf845a29ae860eff40 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
@@ -107,6 +107,24 @@ SDK.NetworkRequest = class extends SDK.SDKObject {
   }
 
   /**
+   * @return {!Map}
+   */
+  static GetSymbolicToNumericPriority() {

[allada, 2016/12/12 17:29:57]

NetworkRequest is part of the SDK module. Since this code is specific to network
module we do not want to put it in SDK since SDK is designed only to represent
backend data.

[Oleksii Kadurin, 2016/12/12 21:13:15]

I see. What do you think would it be a good approach if I make such a static
function in the NetworkDataGridNode.js file
(https://codereview.chromium.org/2562193002/patch/1/10004) and call it from
FilterSuggestionBuilder.js? 

[allada, 2016/12/12 23:51:08]

Lets just expose: Network.NetworkDataGridNode._symbolicToNumericPriority by
removing the _. (in the other file though)

+    var priorityMap = SDK.NetworkRequest._symbolicToNumericPriority;
+    if (!priorityMap) {
+      SDK.NetworkRequest._symbolicToNumericPriority = new Map();
+      priorityMap = SDK.NetworkRequest._symbolicToNumericPriority;
+      priorityMap.set(Protocol.Network.ResourcePriority.VeryLow, 1);
+      priorityMap.set(Protocol.Network.ResourcePriority.Low, 2);
+      priorityMap.set(Protocol.Network.ResourcePriority.Medium, 3);
+      priorityMap.set(Protocol.Network.ResourcePriority.High, 4);
+      priorityMap.set(Protocol.Network.ResourcePriority.VeryHigh, 5);
+    }
+
+    return priorityMap;
+  }
+
+  /**
    * @return {!Protocol.Network.RequestId}
    */
   get requestId() {