Replace OS::NumberOfCores() with CPU::NumberOfProcessorsOnline().

test/cctest/test-platform.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 14 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <stdlib.h>
 
 #include "cctest.h"
 #include "platform.h"
 
 using namespace ::v8::internal;
 
-TEST(NumberOfCores) {
-  CHECK_GT(OS::NumberOfCores(), 0);
-}
-
-
 #ifdef __GNUC__
 #define ASM __asm__ __volatile__
 
 #if defined(_M_X64) || defined(__x86_64__)
 #define GET_STACK_POINTER() \
   static int sp_addr = 0; \
   do { \
     ASM("mov %%rsp, %0" : "=g" (sp_addr)); \
   } while (0)
 #elif defined(_M_IX86) || defined(__i386__)
@@ skipping 41 matching lines @@
   v8::Local<v8::Function> foo =
       v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo")));
 
   v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL);
   CHECK_EQ(0, result->Int32Value() % OS::ActivationFrameAlignment());
 }
 
 #undef GET_STACK_POINTERS
 #undef ASM
 #endif  // __GNUC__