Port count-based profiler to ARM

src/runtime-profiler.cc

Index: src/runtime-profiler.cc
diff --git a/src/runtime-profiler.cc b/src/runtime-profiler.cc
index de9bf401ba41e5c3118ff6aa52fb77913eef22e7..7892508bd3f1c244ce2664919b007ee56116f70e 100644
--- a/src/runtime-profiler.cc
+++ b/src/runtime-profiler.cc
@@ -173,7 +173,7 @@ void RuntimeProfiler::AttemptOnStackReplacement(JSFunction* function) {
   // prepared to generate it, but we don't expect to have to.
   bool found_code = false;
   Code* stack_check_code = NULL;
-#ifdef V8_TARGET_ARCH_IA32
+#if defined(V8_TARGET_ARCH_IA32) || defined(V8_TARGET_ARCH_ARM)
   if (FLAG_count_based_interrupts) {
     InterruptStub interrupt_stub;
     found_code = interrupt_stub.FindCodeInCache(&stack_check_code);
@@ -344,7 +344,7 @@ void RuntimeProfiler::OptimizeNow() {
 
 
 void RuntimeProfiler::NotifyTick() {
-#ifdef V8_TARGET_ARCH_IA32
+#if defined(V8_TARGET_ARCH_IA32) || defined(V8_TARGET_ARCH_ARM)
   if (FLAG_count_based_interrupts) return;
 #endif
   isolate_->stack_guard()->RequestRuntimeProfilerTick();