Merge 114800 - [chromium] Plumb a compositor surface ready notification through to the threaded com…

Source/WebKit/chromium/public/WebWidget.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 
 #include "WebCompositionUnderline.h"
 #include "WebTextInputType.h"
 #include "WebTextDirection.h"
 #include "platform/WebCanvas.h"
 #include "platform/WebCommon.h"
 #include "platform/WebRect.h"
 #include "platform/WebSize.h"
 
 #define WEBKIT_HAS_NEW_FULLSCREEN_API 1
+#define WEBWIDGET_HAS_SETCOMPOSITORSURFACEREADY 1
 
 namespace WebKit {
 
 class WebInputEvent;
 class WebMouseEvent;
 class WebString;
 struct WebPoint;
 template <typename T> class WebVector;
 
 class WebWidget {
@@ skipping 47 matching lines @@
     // In non-threaded compositing mode, triggers compositing of the current
     // layers onto the screen. You MUST call Layout before calling this method,
     // for the same reasons described in the paint method above
     //
     // In threaded compositing mode, indicates that the widget should update
     // itself, for example due to window damage. The redraw will begin
     // asynchronously and perform layout and animation internally. Do not call
     // animate or layout in this case.
     virtual void composite(bool finish) = 0;
 
+    // Indicates that the compositing surface associated with this WebWidget is
+    // ready to use.
+    virtual void setCompositorSurfaceReady() = 0;
+
     // Temporary method for the embedder to notify the WebWidget that the widget
     // has taken damage, e.g. due to a window expose. This method will be
     // removed when the WebWidget inversion patch lands --- http://crbug.com/112837
     virtual void setNeedsRedraw() { }
 
     // Temporary method for the embedder to check for throttled input. When this
     // is true, the WebWidget is indicating that it would prefer to not receive
     // additional input events until
     // WebWidgetClient::didBecomeReadyForAdditionalInput is called.
     //
@@ skipping 88 matching lines @@
     // following the call to instrumentBeginFrame().
     virtual void instrumentCancelFrame() { }
 
 protected:
     ~WebWidget() { }
 };
 
 } // namespace WebKit
 
 #endif