Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/shared_lib/DartNativeExtensions.h

Index: Source/bindings/core/dart/shared_lib/DartNativeExtensions.h
diff --git a/Source/platform/weborigin/Referrer.h b/Source/bindings/core/dart/shared_lib/DartNativeExtensions.h
similarity index 77%
copy from Source/platform/weborigin/Referrer.h
copy to Source/bindings/core/dart/shared_lib/DartNativeExtensions.h
index b8d957258133c20a5a840f0ce8d99f95e5f84a87..cecba7d525d0601bb5947612b38c13923772fb98 100644
--- a/Source/platform/weborigin/Referrer.h
+++ b/Source/bindings/core/dart/shared_lib/DartNativeExtensions.h
@@ -28,22 +28,24 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef Referrer_h
-#define Referrer_h
+#ifndef DartNativeExtensions_h
+#define DartNativeExtensions_h
 
-#include "platform/weborigin/ReferrerPolicy.h"
 #include "wtf/text/WTFString.h"
+#include <dart_api.h>
+
 
 namespace blink {
 
-struct Referrer {
-    Referrer(const String& referrer, ReferrerPolicy referrerPolicy) : referrer(referrer), referrerPolicy(referrerPolicy) { }
-    Referrer() : referrerPolicy(ReferrerPolicyDefault) { }
+class DartNativeExtensions {
+public:
+    static Dart_Handle loadExtension(const String& url, Dart_Handle parentLibrary);
 
-    AtomicString referrer;
-    ReferrerPolicy referrerPolicy;
+private:
+    static Dart_Handle loadExtensionLibrary(const String& libraryPath, const String& libraryName, void** libraryHandle);
+    static Dart_Handle resolveSymbol(void* libHandle, const String& symbolName, void** symbol);
 };
 
 }
 
-#endif // Referrer_h
+#endif // DartNativeExtensions_h