Create ResourceProgressEvent, expose as Chromium API

Source/WebKit/chromium/public/WebDOMProgressEvent.h

Index: Source/WebKit/chromium/public/WebDOMProgressEvent.h
diff --git a/Source/WebKit/chromium/public/WebMediaSource.h b/Source/WebKit/chromium/public/WebDOMProgressEvent.h
similarity index 83%
copy from Source/WebKit/chromium/public/WebMediaSource.h
copy to Source/WebKit/chromium/public/WebDOMProgressEvent.h
index 46776b9d618c8f01b572b13e98f582b022d800ce..e9b092132de5ad2ab34f14b5c498a5aa30305290 100644
--- a/Source/WebKit/chromium/public/WebMediaSource.h
+++ b/Source/WebKit/chromium/public/WebDOMProgressEvent.h
@@ -28,20 +28,19 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebMediaSource_h
-#define WebMediaSource_h
+#ifndef WebDOMProgressEvent_h
+#define WebDOMProgressEvent_h
 
-#include "../../../../public/platform/WebURL.h"
-#include "WebTimeRange.h"
+#include "WebDOMEvent.h"
 
 namespace WebKit {
 
-class WebMediaSourceClient;
+class WebString;
 
-class WebMediaSource {
+class WebDOMProgressEvent : public WebDOMEvent {
 public:
-    virtual ~WebMediaSource() { };
-    virtual void open(WebMediaSourceClient*) = 0;
+    WebDOMProgressEvent() { }
+    WEBKIT_EXPORT WebDOMProgressEvent(const WebString& type, bool lengthIsComputable, unsigned long long loaded, unsigned long long total);
 };
 
 } // namespace WebKit