Create ResourceProgressEvent, expose as Chromium API

Source/core/dom/ResourceProgressEvent.h

Index: Source/core/dom/ResourceProgressEvent.h
diff --git a/Source/modules/webmidi/MIDIPort.cpp b/Source/core/dom/ResourceProgressEvent.h
similarity index 55%
copy from Source/modules/webmidi/MIDIPort.cpp
copy to Source/core/dom/ResourceProgressEvent.h
index c6d587859f267883719afbfcd8e26b9418b10933..50e72263d0f543e2212ece68b72ebff2e8101b1e 100644
--- a/Source/modules/webmidi/MIDIPort.cpp
+++ b/Source/core/dom/ResourceProgressEvent.h
@@ -28,46 +28,43 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "config.h"
-#include "modules/webmidi/MIDIPort.h"
+#ifndef ResourceProgressEvent_h
+#define ResourceProgressEvent_h
+
+#include "core/dom/ProgressEvent.h"
 
 namespace WebCore {
 
-PassRefPtr<MIDIPort> MIDIPort::create(ScriptExecutionContext* context, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode type, const String& version)
-{
-    RefPtr<MIDIPort> midiPort(adoptRef(new MIDIPort(context, id, manufacturer, name, type, version)));
-    midiPort->suspendIfNeeded();
-    return midiPort.release();
-}
+// ResourceProgressEvent is a non-standard class that is simply a ProgressEvent
+// with an additional read-only "url" property containing a string URL. This is
+// used by the Chromium NaCl integration to indicate to which resource the
+// event applies. This is useful because the NaCl integration will download
+// (and translate in the case of PNaCl) multiple binary files. It is not
+// constructable by web content at all, and so does not provide the usual
+// EventInit pattern for Event construction.
+class ResourceProgressEvent : public ProgressEvent {
+public:
+    static PassRefPtr<ResourceProgressEvent> create()
+    {
+        return adoptRef(new ResourceProgressEvent);
+    }
+    static PassRefPtr<ResourceProgressEvent> create(const AtomicString& type, bool lengthComputable, unsigned long long loaded, unsigned long long total, const String& url)
+    {
+        return adoptRef(new ResourceProgressEvent(type, lengthComputable, loaded, total, url));
+    }
+
+    const String& url() const;
 
-MIDIPort::MIDIPort(ScriptExecutionContext* context, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode type, const String& version)
-    : ActiveDOMObject(context)
-    , m_id(id)
-    , m_manufacturer(manufacturer)
-    , m_name(name)
-    , m_type(type)
-    , m_version(version)
-{
-    ASSERT(type == MIDIPortTypeInput || type == MIDIPortTypeOutput);
-    ScriptWrappable::init(this);
-}
+    virtual const AtomicString& interfaceName() const;
 
-MIDIPort::~MIDIPort()
-{
-    stop();
-}
+protected:
+    ResourceProgressEvent();
+    ResourceProgressEvent(const AtomicString& type, bool lengthComputable, unsigned long long loaded, unsigned long long total, const String& url);
 
-String MIDIPort::type() const
-{
-    switch (m_type) {
-    case MIDIPortTypeInput:
-        return ASCIILiteral("input");
-    case MIDIPortTypeOutput:
-        return ASCIILiteral("output");
-    default:
-        ASSERT_NOT_REACHED();
-    }
-    return emptyString();
-}
+private:
+    String m_url;
+};
 
 } // namespace WebCore
+
+#endif // ResourceProgressEvent_h