Making BeginFrameArgs work with TRACE_EVENT system.

cc/debug/traced_value.h

 // Copyright 2013 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.
 
 #ifndef CC_DEBUG_TRACED_VALUE_H_
 #define CC_DEBUG_TRACED_VALUE_H_
 
 #include <string>
 
 #include "base/debug/trace_event.h"
@@ skipping 28 matching lines @@
 
  private:
   explicit TracedValue(base::Value* value);
   virtual ~TracedValue();
 
   scoped_ptr<base::Value> value_;
 
   DISALLOW_COPY_AND_ASSIGN(TracedValue);
 };
 
+template <class T>
+static scoped_refptr<base::debug::ConvertableToTraceFormat> ToTrace(T* t) {

[brianderson, 2014/05/08 21:25:49]

Nice!

+  return TracedValue::FromValue(t->StateAsValue().release());
+}
+
+template <class T>
+static scoped_refptr<base::debug::ConvertableToTraceFormat> ToTrace(
+    const T& t) {
+  return ToTrace(&t);
+}
+
 }  // namespace cc
 
 #endif  // CC_DEBUG_TRACED_VALUE_H_