Add a ConvertableToTraceFormat type to the trace framework.

ppapi/shared_impl/ppb_trace_event_impl.cc

 // Copyright (c) 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 "ppapi/shared_impl/ppb_trace_event_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "ppapi/thunk/thunk.h"
 
 
@@ skipping 25 matching lines @@
                                       const uint8_t arg_types[],
                                       const uint64_t arg_values[],
                                       uint8_t flags) {
   base::debug::TraceLog::GetInstance()->AddTraceEvent(phase,
       static_cast<const unsigned char*>(category_enabled), name, id, num_args,
       arg_names, arg_types,
       // This cast is necessary for LP64 systems, where uint64_t is defined as
       // an unsigned long int, but trace_event internals are hermetic and
       // accepts an |unsigned long long*|.  The pointer types are compatible but
       // the compiler throws an error without an explicit cast.
-      reinterpret_cast<const unsigned long long*>(arg_values), flags);
+      reinterpret_cast<const unsigned long long*>(arg_values), NULL, flags);
 }
 
 // static
 void TraceEventImpl::SetThreadName(const char* thread_name) {
   base::PlatformThread::SetName(thread_name);
 }
 
 namespace {
 
 const PPB_Trace_Event_Dev g_ppb_trace_event_thunk = {
   &TraceEventImpl::GetCategoryEnabled,
   &TraceEventImpl::AddTraceEvent,
   &TraceEventImpl::SetThreadName,
 };
 
 }  // namespace ppapi
 
 }  // namespace
 
 namespace ppapi {
 namespace thunk {
 
 const PPB_Trace_Event_Dev_0_1* GetPPB_Trace_Event_Dev_0_1_Thunk() {
   return &g_ppb_trace_event_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi