Revert "Introduce API to temporarily interrupt long running JavaScript code."

src/execution.cc

Index: src/execution.cc
diff --git a/src/execution.cc b/src/execution.cc
index 634c83ae189e5a2e5cdc8be4abbb0c91f85dcb07..c0e9a64fbb000fe94d8a3a0be97c20277ab935e6 100644
--- a/src/execution.cc
+++ b/src/execution.cc
@@ -540,48 +540,6 @@ void StackGuard::Continue(InterruptFlag after_what) {
 }
 
 
-void StackGuard::RequestInterrupt(InterruptCallback callback, void* data) {
-  ExecutionAccess access(isolate_);
-  thread_local_.interrupt_flags_ |= API_INTERRUPT;
-  thread_local_.interrupt_callback_ = callback;
-  thread_local_.interrupt_callback_data_ = data;
-  set_interrupt_limits(access);
-}
-
-
-void StackGuard::ClearInterrupt() {
-  thread_local_.interrupt_callback_ = 0;
-  thread_local_.interrupt_callback_data_ = 0;
-  Continue(API_INTERRUPT);
-}
-
-
-bool StackGuard::IsAPIInterrupt() {
-  ExecutionAccess access(isolate_);
-  return thread_local_.interrupt_flags_ & API_INTERRUPT;
-}
-
-
-void StackGuard::InvokeInterruptCallback() {
-  InterruptCallback callback = 0;
-  void* data = 0;
-
-  {
-    ExecutionAccess access(isolate_);
-    callback = thread_local_.interrupt_callback_;
-    data = thread_local_.interrupt_callback_data_;
-    thread_local_.interrupt_callback_ = NULL;
-    thread_local_.interrupt_callback_data_ = NULL;
-  }
-
-  if (callback != NULL) {
-    VMState<EXTERNAL> state(isolate_);
-    HandleScope handle_scope(isolate_);
-    callback(reinterpret_cast<v8::Isolate*>(isolate_), data);
-  }
-}
-
-
 char* StackGuard::ArchiveStackGuard(char* to) {
   ExecutionAccess access(isolate_);
   OS::MemCopy(to, reinterpret_cast<char*>(&thread_local_), sizeof(ThreadLocal));
@@ -623,7 +581,6 @@ void StackGuard::ThreadLocal::Clear() {
   nesting_ = 0;
   postpone_interrupts_nesting_ = 0;
   interrupt_flags_ = 0;
-  interrupt_callback_ = 0;
 }
 
 
@@ -644,7 +601,6 @@ bool StackGuard::ThreadLocal::Initialize(Isolate* isolate) {
   nesting_ = 0;
   postpone_interrupts_nesting_ = 0;
   interrupt_flags_ = 0;
-  interrupt_callback_ = 0;
   return should_set_stack_limits;
 }
 
@@ -980,11 +936,6 @@ MaybeObject* Execution::HandleStackGuardInterrupt(Isolate* isolate) {
     return isolate->heap()->undefined_value();
   }
 
-  if (stack_guard->IsAPIInterrupt()) {
-    stack_guard->InvokeInterruptCallback();
-    stack_guard->Continue(API_INTERRUPT);
-  }
-
   if (stack_guard->IsGCRequest()) {
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "StackGuard GC request");