Revert "Remove Failure::OutOfMemory propagation and V8::IgnoreOutOfMemoryException."

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index ef099948b9bdb2bb9c8064c048584d83ce89f77d..5e54267e34cd1dc9d962adb364e9f8540b4e1006 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4616,6 +4616,20 @@ class V8_EXPORT V8 {
   static void SetArrayBufferAllocator(ArrayBuffer::Allocator* allocator);
 
   /**
+   * Ignore out-of-memory exceptions.
+   *
+   * V8 running out of memory is treated as a fatal error by default.
+   * This means that the fatal error handler is called and that V8 is
+   * terminated.
+   *
+   * IgnoreOutOfMemoryException can be used to not treat an
+   * out-of-memory situation as a fatal error.  This way, the contexts
+   * that did not cause the out of memory problem might be able to
+   * continue execution.
+   */
+  static void IgnoreOutOfMemoryException();
+
+  /**
    * Check if V8 is dead and therefore unusable.  This is the case after
    * fatal errors such as out-of-memory situations.
    */
@@ -5219,6 +5233,9 @@ class V8_EXPORT Context {
    */
   void Exit();
 
+  /** Returns true if the context has experienced an out of memory situation. */
+  bool HasOutOfMemoryException();
+
   /** Returns an isolate associated with a current context. */
   v8::Isolate* GetIsolate();