Remove SkThread::setProcessorAffinity()

src/utils/SkThreadUtils_pthread_linux.cpp

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE //for pthread_setaffinity_np
-#endif
-
-#include "SkThreadUtils.h"
-#include "SkThreadUtils_pthread.h"
-
-#include <pthread.h>
-
-static int nth_set_cpu(unsigned int n, cpu_set_t* cpuSet) {
-    n %= CPU_COUNT(cpuSet);
-    for (unsigned int setCpusSeen = 0, currentCpu = 0; true; ++currentCpu) {
-        if (CPU_ISSET(currentCpu, cpuSet)) {
-            ++setCpusSeen;
-            if (setCpusSeen > n) {
-                return currentCpu;
-            }
-        }
-    }
-}
-
-bool SkThread::setProcessorAffinity(unsigned int processor) {
-    SkThread_PThreadData* pthreadData = static_cast<SkThread_PThreadData*>(fData);
-    if (!pthreadData->fValidPThread) {
-        return false;
-    }
-
-    cpu_set_t parentCpuset;
-    if (0 != pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &parentCpuset)) {
-        return false;
-    }
-
-    cpu_set_t cpuset;
-    CPU_ZERO(&cpuset);
-    CPU_SET(nth_set_cpu(processor, &parentCpuset), &cpuset);
-    return 0 == pthread_setaffinity_np(pthreadData->fPThread,
-                                       sizeof(cpu_set_t),
-                                       &cpuset);
-}