DevTools: WebSocketFrameView - Add frames display control toolbar

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 4750c082d79e8b4143a10d2c75621c5c25344752..7d53253538b01f28b60cd63034ccd54a66bc4ae2 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkRequest.js
@@ -1051,6 +1051,10 @@ SDK.NetworkRequest = class extends Common.Object {
     return this._frames;
   }
 
+  clearFrames() {
+    this._frames = [];

[allada, 2017/04/10 19:39:15]

We cannot clear frames here this way because SDK.NetworkRequest is shared and if
the frames are cleared like this here, it'd clear them in other locations as
well (silently too).

I will suggest that we remove this part entirely and instead maintain an index
offset position of this array in ResourceWebSocketFrameView.js of what frame
index we should start displaying.

+  }
+
   /**
    * @param {string} errorMessage
    * @param {number} time