Add a ConvertableToTraceFormat type to the trace framework.

content/renderer/render_thread_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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 203 matching lines @@
 void AddTraceEvent(char phase,
                    const unsigned char* category_enabled,
                    const char* name,
                    unsigned long long id,
                    int num_args,
                    const char** arg_names,
                    const unsigned char* arg_types,
                    const unsigned long long* arg_values,
                    unsigned char flags) {
   TRACE_EVENT_API_ADD_TRACE_EVENT(phase, category_enabled, name, id, num_args,
-                                  arg_names, arg_types, arg_values, flags);
+                                  arg_names, arg_types, arg_values, NULL,
+                                  flags);
 }
 #endif
 
 }  // namespace
 
 class RenderThreadImpl::GpuVDAContextLostCallback
     : public WebKit::WebGraphicsContext3D::WebGraphicsContextLostCallback {
  public:
   GpuVDAContextLostCallback() {}
   virtual ~GpuVDAContextLostCallback() {}
@@ skipping 1051 matching lines @@
 
 void RenderThreadImpl::SetFlingCurveParameters(
     const std::vector<float>& new_touchpad,
     const std::vector<float>& new_touchscreen) {
   webkit_platform_support_->SetFlingCurveParameters(new_touchpad,
                                                     new_touchscreen);
 
 }
 
 }  // namespace content