[Tracing] Remove context_id in favor of traits

content/child/blink_platform_impl.cc

 // Copyright 2014 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/child/blink_platform_impl.h"
 
 #include <math.h>
 
 #include <vector>
 
@@ skipping 663 matching lines @@
       if (arg_types[i] == TRACE_VALUE_TYPE_CONVERTABLE) {
         convertable_wrappers[i] =
             new ConvertableToTraceFormatWrapper(convertable_values[i]);
       }
     }
   }
   base::TimeTicks timestamp_tt =
       base::TimeTicks() + base::TimeDelta::FromSecondsD(timestamp);
   base::trace_event::TraceEventHandle handle =
       TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_THREAD_ID_AND_TIMESTAMP(
-          phase, category_group_enabled, name, id, trace_event_internal::kNoId,
-          bind_id, base::PlatformThread::CurrentId(), timestamp_tt, num_args,
-          arg_names, arg_types, arg_values, convertable_wrappers, flags);
+          phase, category_group_enabled, name, id, bind_id,
+          base::PlatformThread::CurrentId(), timestamp_tt, num_args, arg_names,
+          arg_types, arg_values, convertable_wrappers, flags);
   blink::Platform::TraceEventHandle result;
   memcpy(&result, &handle, sizeof(result));
   return result;
 }
 
 void BlinkPlatformImpl::updateTraceEventDuration(
     const unsigned char* category_group_enabled,
     const char* name,
     TraceEventHandle handle) {
   base::trace_event::TraceEventHandle traceEventHandle;
@@ skipping 612 matching lines @@
   return WebString::fromUTF8(ui::KeycodeConverter::DomKeyToKeyString(
       static_cast<ui::DomKey>(dom_key)));
 }
 
 int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
   return static_cast<int>(
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
 }  // namespace content