Update from https://crrev.com/312398

cc/base/math_util.h

Index: cc/base/math_util.h
diff --git a/cc/base/math_util.h b/cc/base/math_util.h
index 50494e1ba794ec5aa263736adec5d260a398486c..d9cc43b552eb1042381569f0ff377a1d3de865d0 100644
--- a/cc/base/math_util.h
+++ b/cc/base/math_util.h
@@ -199,29 +199,41 @@ class CC_EXPORT MathUtil {
   static bool FromValue(const base::Value*, gfx::Rect* out_rect);
   static scoped_ptr<base::Value> AsValue(const gfx::PointF& q);
 
-  static void AddToTracedValue(const gfx::Size& s,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Size& s,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::SizeF& s,
+  static void AddToTracedValue(const char* name,
+                               const gfx::SizeF& s,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::Rect& r,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Rect& r,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::PointF& q,
+  static void AddToTracedValue(const char* name,
+                               const gfx::PointF& q,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::Point3F&,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Point3F&,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::Vector2d& v,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Vector2d& v,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::Vector2dF& v,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Vector2dF& v,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::ScrollOffset& v,
+  static void AddToTracedValue(const char* name,
+                               const gfx::ScrollOffset& v,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::QuadF& q,
+  static void AddToTracedValue(const char* name,
+                               const gfx::QuadF& q,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::RectF& rect,
+  static void AddToTracedValue(const char* name,
+                               const gfx::RectF& rect,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::Transform& transform,
+  static void AddToTracedValue(const char* name,
+                               const gfx::Transform& transform,
                                base::debug::TracedValue* res);
-  static void AddToTracedValue(const gfx::BoxF& box,
+  static void AddToTracedValue(const char* name,
+                               const gfx::BoxF& box,
                                base::debug::TracedValue* res);
 
   // Returns a base::Value representation of the floating point value.