clean up a couple of parameters in the tracing interface

src/utils/SkEventTracer.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkEventTracer.h"
 #include "SkOnce.h"
 
 class SkDefaultEventTracer: public SkEventTracer {
     virtual SkEventTracer::Handle
         addTraceEvent(char phase,
                       const uint8_t* categoryEnabledFlag,
                       const char* name,
                       uint64_t id,
                       int numArgs,
                       const char** argNames,
                       const uint8_t* argTypes,
                       const uint64_t* argValues,
                       uint8_t flags) SK_OVERRIDE { return 0; }
 
     virtual void
         updateTraceEventDuration(const uint8_t* categoryEnabledFlag,
                                  const char* name,
-                                 SkEventTracer::Handle) SK_OVERRIDE {};
+                                 SkEventTracer::Handle handle) SK_OVERRIDE {};

[bsalomon, 2014/02/03 17:46:26]

just fyi, skia style allows unnamed params in the decl if the params meaning is
obvious from the type.

 
     virtual const uint8_t* getCategoryGroupEnabled(const char* name) SK_OVERRIDE {
         static uint8_t no = 0;
         return &no;
     };
     virtual const char* getCategoryGroupName(
       const uint8_t* category_group_enabled) SK_OVERRIDE {
         static const char* dummy = "dummy";
         return dummy;
     };
 };
 
 SkEventTracer *SkEventTracer::gInstance;
 
 static void intiailize_default_tracer(int) {
     SkEventTracer::SetInstance(SkNEW(SkDefaultEventTracer));
 }
 
 static void cleanup_tracer() {
     // calling SetInstance will delete the existing instance.
     SkEventTracer::SetInstance(NULL);
 }
 
 SkEventTracer* SkEventTracer::GetInstance() {
     SK_DECLARE_STATIC_ONCE(once);
     SkOnce(&once, intiailize_default_tracer, 0, cleanup_tracer);
     SkASSERT(NULL != SkEventTracer::gInstance);
     return SkEventTracer::gInstance;
 }