Add a telemetry measurement for property tree performance.

content/browser/gpu/compositor_util.cc

 // Copyright (c) 2012 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 "content/browser/gpu/compositor_util.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 161 matching lines @@
 
   // Command line switches take precedence over platform default.
   if (command_line.HasSwitch(cc::switches::kDisablePinchVirtualViewport))
     return false;
   if (command_line.HasSwitch(cc::switches::kEnablePinchVirtualViewport))
     return true;
 
   return true;
 }
 
+bool IsPropertyTreeVerificationEnabled() {
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
+  return command_line.HasSwitch(cc::switches::kEnablePropertyTreeVerification);
+}
+
 bool IsDelegatedRendererEnabled() {
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   bool enabled = false;
 
 #if defined(USE_AURA) || defined(OS_MACOSX)
   // Enable on Aura and Mac.
   enabled = true;
 #endif
 
@@ skipping 241 matching lines @@
     }
   }
   return problem_list;
 }
 
 std::vector<std::string> GetDriverBugWorkarounds() {
   return GpuDataManagerImpl::GetInstance()->GetDriverBugWorkarounds();
 }
 
 }  // namespace content