Add builders for tracing event's structural arguments

cc/quads/yuv_video_draw_quad.cc

 // Copyright 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 "cc/quads/yuv_video_draw_quad.h"
 
+#include "base/debug/trace_event_argument.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
 
 namespace cc {
 
 YUVVideoDrawQuad::YUVVideoDrawQuad()
     : y_plane_resource_id(0),
       u_plane_resource_id(0),
       v_plane_resource_id(0),
@@ skipping 50 matching lines @@
   if (a_plane_resource_id)
     a_plane_resource_id = callback.Run(a_plane_resource_id);
 }
 
 const YUVVideoDrawQuad* YUVVideoDrawQuad::MaterialCast(
     const DrawQuad* quad) {
   DCHECK(quad->material == DrawQuad::YUV_VIDEO_CONTENT);
   return static_cast<const YUVVideoDrawQuad*>(quad);
 }
 
-void YUVVideoDrawQuad::ExtendValue(base::DictionaryValue* value) const {
-  value->Set("tex_coord_rect", MathUtil::AsValue(tex_coord_rect).release());
+void YUVVideoDrawQuad::ExtendValue(base::debug::TracedValue* value) const {
+  value->BeginArray("tex_coord_rect");
+  MathUtil::AddToTracedValue(tex_coord_rect, value);
+  value->EndArray();
   value->SetInteger("y_plane_resource_id", y_plane_resource_id);
   value->SetInteger("u_plane_resource_id", u_plane_resource_id);
   value->SetInteger("v_plane_resource_id", v_plane_resource_id);
   value->SetInteger("a_plane_resource_id", a_plane_resource_id);
 }
 
 }  // namespace cc