Simplify V8ErrorHandler::CallListenerFunction.

The branches of this if statement are identical.

Change-Id: Icc61de50c3bf18d0df2e5cc616aecef0a38e51b8
Reviewed-on: https://chromium-review.googlesource.com/598998Reviewed-by: Adithya Srinivasan <adithyas@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491586}

third_party/WebKit/Source/bindings/core/v8/V8ErrorHandler.cpp

@@ -78,16 +78,10 @@ v8::Local<v8::Value> V8ErrorHandler::CallListenerFunction(
       v8::Integer::New(GetIsolate(), error_event->colno()), error};
   v8::TryCatch try_catch(GetIsolate());
   try_catch.SetVerbose(true);
-  v8::MaybeLocal<v8::Value> result;
-  if (ExecutionContext::From(script_state)->IsWorkerGlobalScope()) {
-    result = V8ScriptRunner::CallFunction(
-        call_function, ExecutionContext::From(script_state), this_value,
-        WTF_ARRAY_LENGTH(parameters), parameters, GetIsolate());
-  } else {
-    result = V8ScriptRunner::CallFunction(
+
+  v8::MaybeLocal<v8::Value> result = V8ScriptRunner::CallFunction(
       call_function, ExecutionContext::From(script_state), this_value,
       WTF_ARRAY_LENGTH(parameters), parameters, GetIsolate());
-  }
   v8::Local<v8::Value> return_value;
   if (!result.ToLocal(&return_value))
     return v8::Null(GetIsolate());