DevTools Profiler UI changes....

webkit/glue/devtools/js/debugger_agent.js

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Provides communication interface to remote v8 debugger. See
  * protocol decription at http://code.google.com/p/v8/wiki/DebuggerProtocol
  */
 goog.provide('devtools.DebuggerAgent');
 
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 /**
  * Handles current profiler status.
  */
 devtools.DebuggerAgent.prototype.didIsProfilingStarted_ = function(
     is_started) {
   if (is_started && !this.isProfilingStarted_) {
     // Start to query log data.
     RemoteDebuggerAgent.GetLogLines(this.lastProfileLogPosition_);
+  } else if (!is_started && this.isProfilingStarted_) {
+    // Display a temporary icon / message indicating that the profile
+    // is being processed.
+    var processingIcon = new WebInspector.SidebarTreeElement(
+        "profile-sidebar-tree-item", "Processing...", "", null, false);
+    var profilesSidebar = WebInspector.panels.profiles.sidebarTree;
+    profilesSidebar.appendChild(processingIcon);
+    var profilerProcessor = this.profilerProcessor_;
+    // Set a callback for adding a profile that removes the temporary element
+    // and restores plain "addProfile" callback.
+    profilerProcessor.setNewProfileCallback(function (profile) {
+      profilesSidebar.removeChild(processingIcon);
+      WebInspector.addProfile(profile);
+      profilerProcessor.setNewProfileCallback(
+          goog.bind(WebInspector.addProfile, WebInspector));
+    });
   }
   this.isProfilingStarted_ = is_started;
   // Update button.
   WebInspector.setRecordingProfile(is_started);
   if (is_started) {
     // Monitor profiler state. It can stop itself on buffer fill-up.
     setTimeout(function() { RemoteDebuggerAgent.IsProfilingStarted(); }, 1000);
   }
 };
 
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 /**
  * @param {number} handle Object handle.
  * @return {?Object} Returns the object with the handle if it was sent in this
  *    message(some objects referenced by handles may be missing in the message).
  */
 devtools.DebuggerMessage.prototype.lookup = function(handle) {
   return this.refs_[handle];
 };