Add a telemetry measurement for property tree performance.

chrome/browser/chromeos/login/chrome_restart_request.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/chromeos/login/chrome_restart_request.h"
 
 #include <vector>
 
 #include "ash/ash_switches.h"
 #include "base/command_line.h"
@@ skipping 170 matching lines @@
     // Please keep these in alphabetical order. Non-UI Compositor switches
     // here should also be added to
     // content/browser/renderer_host/render_process_host_impl.cc.
     cc::switches::kCompositeToMailbox,
     cc::switches::kDisableCompositedAntialiasing,
     cc::switches::kDisableMainFrameBeforeActivation,
     cc::switches::kDisablePinchVirtualViewport,
     cc::switches::kDisableThreadedAnimation,
     cc::switches::kEnableGpuBenchmarking,
     cc::switches::kEnablePinchVirtualViewport,
+    cc::switches::kEnablePropertyTreeVerification,
     cc::switches::kEnableMainFrameBeforeActivation,
     cc::switches::kEnableTopControlsPositionCalculation,
     cc::switches::kMaxTilesForInterestArea,
     cc::switches::kMaxUnusedResourceMemoryUsagePercentage,
     cc::switches::kShowCompositedLayerBorders,
     cc::switches::kShowFPSCounter,
     cc::switches::kShowLayerAnimationBounds,
     cc::switches::kShowNonOccludingRects,
     cc::switches::kShowOccludingRects,
     cc::switches::kShowPropertyChangedRects,
@@ skipping 178 matching lines @@
     // Relaunch chrome without session manager on dev box.
     ReLaunch(command_line);
     return;
   }
 
   // ChromeRestartRequest deletes itself after request sent to session manager.
   (new ChromeRestartRequest(command_line))->Start();
 }
 
 }  // namespace chromeos