Set up NaClChromeMainArgs number_of_cores member so apps can size threadpools appropriately

chrome/nacl/nacl_listener.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 "chrome/nacl/nacl_listener.h"
 
 #include <errno.h>
 #include <stdlib.h>
 
+#if defined(OS_POSIX)
+#include <unistd.h>
+#endif
+
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/rand_util.h"
 #include "chrome/common/nacl_messages.h"
 #include "chrome/nacl/nacl_ipc_adapter.h"
 #include "chrome/nacl/nacl_validation_db.h"
 #include "chrome/nacl/nacl_validation_query.h"
 #include "ipc/ipc_channel_handle.h"
@@ skipping 114 matching lines @@
   // The listener never dies, otherwise this might be a dangling reference.
   NaClListener* listener_;
 };
 
 
 NaClListener::NaClListener() : shutdown_event_(true, false),
                                io_thread_("NaCl_IOThread"),
 #if defined(OS_LINUX)
                                prereserved_sandbox_size_(0),
 #endif
+#if defined(OS_POSIX)
+                               number_of_cores_(-1),  // unknown/error
+#endif
                                main_loop_(NULL) {
   io_thread_.StartWithOptions(base::Thread::Options(MessageLoop::TYPE_IO, 0));
 #if defined(OS_WIN)
   DCHECK(g_listener == NULL);
   g_listener = this;
 #endif
 }
 
 NaClListener::~NaClListener() {
   NOTREACHED();
@@ skipping 65 matching lines @@
   }
 
   std::vector<nacl::FileDescriptor> handles = params.handles;
 
 #if defined(OS_LINUX) || defined(OS_MACOSX)
   args->urandom_fd = dup(base::GetUrandomFD());
   if (args->urandom_fd < 0) {
     LOG(ERROR) << "Failed to dup() the urandom FD";
     return;
   }
+  args->number_of_cores = number_of_cores_;
   args->create_memory_object_func = CreateMemoryObject;
 # if defined(OS_MACOSX)
   CHECK(handles.size() >= 1);
   g_shm_fd = nacl::ToNativeHandle(handles[handles.size() - 1]);
   handles.pop_back();
 # endif
 #endif
 
   if (params.uses_irt) {
     CHECK(handles.size() >= 1);
@@ skipping 35 matching lines @@
 #if defined(OS_WIN)
   args->broker_duplicate_handle_func = BrokerDuplicateHandle;
   args->attach_debug_exception_handler_func = AttachDebugExceptionHandler;
 #endif
 #if defined(OS_LINUX)
   args->prereserved_sandbox_size = prereserved_sandbox_size_;
 #endif
   NaClChromeMainStart(args);
   NOTREACHED();
 }