Add builders for tracing event's structural arguments

cc/base/math_util.cc

Index: cc/base/math_util.cc
diff --git a/cc/base/math_util.cc b/cc/base/math_util.cc
index 07ad77bd7703d8fc2ed7768858044a7a9b348688..0953c2a308a1db79311fafc966000176de9f7442 100644
--- a/cc/base/math_util.cc
+++ b/cc/base/math_util.cc
@@ -8,6 +8,7 @@
 #include <cmath>
 #include <limits>
 
+#include "base/debug/trace_event_argument.h"
 #include "base/values.h"
 #include "ui/gfx/quad_f.h"
 #include "ui/gfx/rect.h"
@@ -649,6 +650,84 @@ scoped_ptr<base::Value> MathUtil::AsValue(const gfx::BoxF& box) {
   return res.PassAs<base::Value>();
 }
 
+void MathUtil::AddToTracedValue(const gfx::Size& s,
+                                base::debug::TracedValue* res) {
+  res->SetDouble("width", s.width());
+  res->SetDouble("height", s.height());
+}
+
+void MathUtil::AddToTracedValue(const gfx::SizeF& s,
+                                base::debug::TracedValue* res) {
+  res->SetDouble("width", s.width());
+  res->SetDouble("height", s.height());
+}
+
+void MathUtil::AddToTracedValue(const gfx::Rect& r,
+                                base::debug::TracedValue* res) {
+  res->AppendInteger(r.x());
+  res->AppendInteger(r.y());
+  res->AppendInteger(r.width());
+  res->AppendInteger(r.height());
+}
+
+void MathUtil::AddToTracedValue(const gfx::PointF& pt,
+                                base::debug::TracedValue* res) {
+  res->AppendDouble(pt.x());
+  res->AppendDouble(pt.y());
+}
+
+void MathUtil::AddToTracedValue(const gfx::Point3F& pt,
+                                base::debug::TracedValue* res) {
+  res->AppendDouble(pt.x());
+  res->AppendDouble(pt.y());
+  res->AppendDouble(pt.z());
+}
+
+void MathUtil::AddToTracedValue(const gfx::Vector2d& v,
+                                base::debug::TracedValue* res) {
+  res->AppendInteger(v.x());
+  res->AppendInteger(v.y());
+}
+
+void MathUtil::AddToTracedValue(const gfx::QuadF& q,
+                                base::debug::TracedValue* res) {
+  res->AppendDouble(q.p1().x());
+  res->AppendDouble(q.p1().y());
+  res->AppendDouble(q.p2().x());
+  res->AppendDouble(q.p2().y());
+  res->AppendDouble(q.p3().x());
+  res->AppendDouble(q.p3().y());
+  res->AppendDouble(q.p4().x());
+  res->AppendDouble(q.p4().y());
+}
+
+void MathUtil::AddToTracedValue(const gfx::RectF& rect,
+                                base::debug::TracedValue* res) {
+  res->AppendDouble(rect.x());
+  res->AppendDouble(rect.y());
+  res->AppendDouble(rect.width());
+  res->AppendDouble(rect.height());
+}
+
+void MathUtil::AddToTracedValue(const gfx::Transform& transform,
+                                base::debug::TracedValue* res) {
+  const SkMatrix44& m = transform.matrix();
+  for (int row = 0; row < 4; ++row) {
+    for (int col = 0; col < 4; ++col)
+      res->AppendDouble(m.getDouble(row, col));
+  }
+}
+
+void MathUtil::AddToTracedValue(const gfx::BoxF& box,
+                                base::debug::TracedValue* res) {
+  res->AppendInteger(box.x());
+  res->AppendInteger(box.y());
+  res->AppendInteger(box.z());
+  res->AppendInteger(box.width());
+  res->AppendInteger(box.height());
+  res->AppendInteger(box.depth());
+}
+
 scoped_ptr<base::Value> MathUtil::AsValueSafely(double value) {
   return scoped_ptr<base::Value>(new base::FundamentalValue(
       std::min(value, std::numeric_limits<double>::max())));
@@ -659,4 +738,12 @@ scoped_ptr<base::Value> MathUtil::AsValueSafely(float value) {
       std::min(value, std::numeric_limits<float>::max())));
 }
 
+double MathUtil::AsDoubleSafely(double value) {
+  return std::min(value, std::numeric_limits<double>::max());
+}
+
+float MathUtil::AsFloatSafely(float value) {
+  return std::min(value, std::numeric_limits<float>::max());
+}
+
 }  // namespace cc