Revert of Add builders for tracing event's structural arguments

cc/quads/content_draw_quad_base.cc

Index: cc/quads/content_draw_quad_base.cc
diff --git a/cc/quads/content_draw_quad_base.cc b/cc/quads/content_draw_quad_base.cc
index fd6e91b2bec35b86c24b40d96903c8f13967b429..18d3d10c34a8920902f1812e1e8df201306428de 100644
--- a/cc/quads/content_draw_quad_base.cc
+++ b/cc/quads/content_draw_quad_base.cc
@@ -4,7 +4,6 @@
 
 #include "cc/quads/content_draw_quad_base.h"
 
-#include "base/debug/trace_event_argument.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
@@ -50,15 +49,9 @@
   this->swizzle_contents = swizzle_contents;
 }
 
-void ContentDrawQuadBase::ExtendValue(base::debug::TracedValue* value) const {
-  value->BeginArray("tex_coord_rect");
-  MathUtil::AddToTracedValue(tex_coord_rect, value);
-  value->EndArray();
-
-  value->BeginDictionary("texture_size");
-  MathUtil::AddToTracedValue(texture_size, value);
-  value->EndDictionary();
-
+void ContentDrawQuadBase::ExtendValue(base::DictionaryValue* value) const {
+  value->Set("tex_coord_rect", MathUtil::AsValue(tex_coord_rect).release());
+  value->Set("texture_size", MathUtil::AsValue(texture_size).release());
   value->SetBoolean("swizzle_contents", swizzle_contents);
 }