Revert of Remove V8RecrusionScope, cleanup call sites.

extensions/renderer/script_context.cc

Index: extensions/renderer/script_context.cc
diff --git a/extensions/renderer/script_context.cc b/extensions/renderer/script_context.cc
index 4bcec511ae91f4ab3f34ebf0b399258359e02298..f6f47f33932cbfe01c7da0f964366da333c0207c 100644
--- a/extensions/renderer/script_context.cc
+++ b/extensions/renderer/script_context.cc
@@ -29,6 +29,7 @@
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
+#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "v8/include/v8.h"
 
@@ -184,8 +185,7 @@
   v8::EscapableHandleScope handle_scope(isolate());
   v8::Context::Scope scope(v8_context());
 
-  v8::MicrotasksScope microtasks(
-      isolate(), v8::MicrotasksScope::kDoNotRunMicrotasks);
+  blink::WebScopedMicrotaskSuppression suppression;
   if (!is_valid_) {
     return handle_scope.Escape(
         v8::Local<v8::Primitive>(v8::Undefined(isolate())));
@@ -434,8 +434,7 @@
     return v8::Undefined(isolate());
   }
 
-  v8::MicrotasksScope microtasks(
-      isolate(), v8::MicrotasksScope::kDoNotRunMicrotasks);
+  blink::WebScopedMicrotaskSuppression suppression;
   v8::TryCatch try_catch(isolate());
   try_catch.SetCaptureMessage(true);
   v8::ScriptOrigin origin(