[compiler-dispatcher] make it so that we can always parse on bg threads

src/compiler-dispatcher/compiler-dispatcher-job.h

Index: src/compiler-dispatcher/compiler-dispatcher-job.h
diff --git a/src/compiler-dispatcher/compiler-dispatcher-job.h b/src/compiler-dispatcher/compiler-dispatcher-job.h
index 43978b8276d86e0782f8003afba8a5e4897963c7..e0a2677f8e51aba4a9f1d53da1fb9f48b1e5e71e 100644
--- a/src/compiler-dispatcher/compiler-dispatcher-job.h
+++ b/src/compiler-dispatcher/compiler-dispatcher-job.h
@@ -7,6 +7,7 @@
 
 #include <memory>
 
+#include "include/v8.h"
 #include "src/base/macros.h"
 #include "src/globals.h"
 #include "src/handles.h"
@@ -46,14 +47,6 @@ class V8_EXPORT_PRIVATE CompilerDispatcherJob {
   ~CompilerDispatcherJob();
 
   CompileJobStatus status() const { return status_; }
-  bool can_parse_on_background_thread() const {
-    return can_parse_on_background_thread_;
-  }
-  // Should only be called after kReadyToCompile.
-  bool can_compile_on_background_thread() const {
-    DCHECK(compile_job_.get());
-    return can_compile_on_background_thread_;
-  }
 
   // Returns true if this CompilerDispatcherJob was created for the given
   // function.
@@ -98,6 +91,8 @@ class V8_EXPORT_PRIVATE CompilerDispatcherJob {
   CompilerDispatcherTracer* tracer_;
   Handle<SharedFunctionInfo> shared_;  // Global handle.
   Handle<String> source_;        // Global handle.
+  Handle<String> wrapper_;       // Global handle.
+  std::unique_ptr<v8::String::ExternalStringResourceBase> source_wrapper_;
   size_t max_stack_size_;
 
   // Members required for parsing.
@@ -112,9 +107,6 @@ class V8_EXPORT_PRIVATE CompilerDispatcherJob {
   std::unique_ptr<CompilationInfo> compile_info_;
   std::unique_ptr<CompilationJob> compile_job_;
 
-  bool can_parse_on_background_thread_;
-  bool can_compile_on_background_thread_;
-
   bool trace_compiler_dispatcher_jobs_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherJob);