Add a flag for enabling compositor property trees

content/browser/renderer_host/compositor_impl_android.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/renderer_host/compositor_impl_android.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 
 #include "base/android/jni_android.h"
@@ skipping 426 matching lines @@
   settings.renderer_settings.refresh_rate = 60.0;
   settings.renderer_settings.allow_antialiasing = false;
   settings.renderer_settings.highp_threshold_min = 2048;
   settings.use_zero_copy = true;
 
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   settings.initial_debug_state.SetRecordRenderingStats(
       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking));
   settings.initial_debug_state.show_fps_counter =
       command_line->HasSwitch(cc::switches::kUIShowFPSCounter);
+  settings.use_property_trees =
+      command_line->HasSwitch(cc::switches::kEnableCompositorPropertyTrees);
   // TODO(enne): Update this this compositor to use the scheduler.
   settings.single_thread_proxy_scheduler = false;
 
   if (command_line->HasSwitch(
           switches::kEnableAndroidCompositorAnimationTimelines))
     settings.use_compositor_animation_timelines = true;
 
   cc::LayerTreeHost::InitParams params;
   params.client = this;
   params.shared_bitmap_manager = HostSharedBitmapManager::current();
@@ skipping 339 matching lines @@
 
 void CompositorImpl::SetNeedsAnimate() {
   needs_animate_ = true;
   if (!host_->visible())
     return;
 
   host_->SetNeedsAnimate();
 }
 
 }  // namespace content