bind-gen: Fix IDL constant installation (callback case)

V8 doesn't allow to specify v8::SideEffectType::kHasNoSideEffect
even when there is no setter and the property is v8::ReadOnly.
Fixes the flag.

Bug: 839389
Change-Id: I579dffaa243f709e090747e29d513564b9c830f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2134746Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#756189}

third_party/blink/renderer/bindings/core/v8/v8_dom_configuration.cc

@@ -725,13 +725,13 @@ void V8DOMConfiguration::InstallConstants(
         static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete),
         v8::Local<v8::AccessorSignature>(), v8::DEFAULT,
         v8::SideEffectType::kHasNoSideEffect,
-        v8::SideEffectType::kHasNoSideEffect);
+        v8::SideEffectType::kHasSideEffect);
     prototype_template->SetNativeDataProperty(
         name, constants[i].getter, nullptr, v8::Local<v8::Value>(),
         static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete),
         v8::Local<v8::AccessorSignature>(), v8::DEFAULT,
         v8::SideEffectType::kHasNoSideEffect,
-        v8::SideEffectType::kHasNoSideEffect);
+        v8::SideEffectType::kHasSideEffect);
   }
 }