Add a trace to output the scheduler settings.

cc/scheduler/scheduler_settings.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 "cc/scheduler/scheduler_settings.h"
 
 namespace cc {
 
 SchedulerSettings::SchedulerSettings()
     : begin_frame_scheduling_enabled(true),
       main_frame_before_draw_enabled(true),
       main_frame_before_activation_enabled(false),
       impl_side_painting(false),
       timeout_and_draw_when_animation_checkerboards(true),
       maximum_number_of_failed_draws_before_draw_is_forced_(3),
       using_synchronous_renderer_compositor(false),
       throttle_frame_production(true) {
 }
 
 SchedulerSettings::~SchedulerSettings() {}
 
+scoped_ptr<base::Value> SchedulerSettings::AsValue() const {
+  scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue);
+  state->SetBoolean("begin_frame_scheduling_enabled",
+                    begin_frame_scheduling_enabled);
+  state->SetBoolean("main_frame_before_draw_enabled",
+                    main_frame_before_draw_enabled);
+  state->SetBoolean("main_frame_before_activation_enabled",
+                    main_frame_before_activation_enabled);
+  state->SetBoolean("impl_side_painting", impl_side_painting);
+  state->SetBoolean("timeout_and_draw_when_animation_checkerboards",
+                    timeout_and_draw_when_animation_checkerboards);
+  state->SetInteger("maximum_number_of_failed_draws_before_draw_is_forced_",
+                    maximum_number_of_failed_draws_before_draw_is_forced_);
+  state->SetBoolean("using_synchronous_renderer_compositor",
+                    using_synchronous_renderer_compositor);
+  state->SetBoolean("throttle_frame_production", throttle_frame_production);
+  return state.PassAs<base::Value>();
+}
+
 }  // namespace cc