Add builders for tracing event's structural arguments

cc/quads/texture_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/texture_draw_quad.h"
 
+#include "base/debug/trace_event_argument.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
 #include "ui/gfx/vector2d_f.h"
 
 namespace cc {
 
 TextureDrawQuad::TextureDrawQuad()
     : resource_id(0),
       premultiplied_alpha(false),
@@ skipping 59 matching lines @@
 void TextureDrawQuad::IterateResources(
     const ResourceIteratorCallback& callback) {
   resource_id = callback.Run(resource_id);
 }
 
 const TextureDrawQuad* TextureDrawQuad::MaterialCast(const DrawQuad* quad) {
   DCHECK(quad->material == DrawQuad::TEXTURE_CONTENT);
   return static_cast<const TextureDrawQuad*>(quad);
 }
 
-void TextureDrawQuad::ExtendValue(base::DictionaryValue* value) const {
+void TextureDrawQuad::ExtendValue(base::debug::TracedValue* value) const {
   value->SetInteger("resource_id", resource_id);
   value->SetBoolean("premultiplied_alpha", premultiplied_alpha);
-  value->Set("uv_top_left", MathUtil::AsValue(uv_top_left).release());
-  value->Set("uv_bottom_right", MathUtil::AsValue(uv_bottom_right).release());
+  value->BeginArray("uv_top_left");
+  MathUtil::AddToTracedValue(uv_top_left, value);
+  value->EndArray();
+
+  value->BeginArray("uv_bottom_right");
+  MathUtil::AddToTracedValue(uv_bottom_right, value);
+  value->EndArray();
+
   value->SetInteger("background_color", background_color);
-  scoped_ptr<base::ListValue> vertex_opacity_value(new base::ListValue);
+
+  value->BeginArray("vertex_opacity");
   for (size_t i = 0; i < 4; ++i)
-    vertex_opacity_value->AppendDouble(vertex_opacity[i]);
-  value->Set("vertex_opacity", vertex_opacity_value.release());
+    value->AppendDouble(vertex_opacity[i]);
+  value->EndArray();
+
   value->SetBoolean("flipped", flipped);
 }
 
 }  // namespace cc