Make Uri.base work in SkyView

sky/engine/bindings/builtin_natives.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/bindings/builtin_natives.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ skipping 174 matching lines @@
   Dart_Handle closure = Dart_GetNativeArgument(args, 0);
   if (LogIfError(closure) || !Dart_IsClosure(closure))
     return;
   DartState* dart_state = DartState::Current();
   CHECK(dart_state);
   Microtask::enqueueMicrotask(base::Bind(&ExecuteMicrotask,
     dart_state->GetWeakPtr(), DartValue::Create(dart_state, closure)));
 }
 
 void GetBaseURLString(Dart_NativeArguments args) {
-  String url;
-  if (Document* document = DOMDartState::CurrentDocument())
-    url = document->url().string();
+  String url = DOMDartState::Current()->url();
   Dart_SetReturnValue(args, StringToDart(DartState::Current(), url));
 }
 
 void Timer_create(Dart_NativeArguments args) {
   int64_t milliseconds = 0;
   DART_CHECK_VALID(Dart_GetNativeIntegerArgument(args, 0, &milliseconds));
   Dart_Handle closure = Dart_GetNativeArgument(args, 1);
   DART_CHECK_VALID(closure);
   CHECK(Dart_IsClosure(closure));
   bool repeating = false;
@@ skipping 14 matching lines @@
 void Timer_cancel(Dart_NativeArguments args) {
   int64_t timer_id = 0;
   DART_CHECK_VALID(Dart_GetNativeIntegerArgument(args, 0, &timer_id));
 
   DartState* state = DartState::Current();
   CHECK(state);
   state->timer_heap().Remove(timer_id);
 }
 
 }  // namespace blink