Don't force layout when sending mouse events.

Tools/DumpRenderTree/chromium/TestRunner/src/EventSender.cpp

 /*
  * Copyright (C) 2010 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 406 matching lines @@
 
 //
 // Implemented javascript methods.
 //
 
 void EventSender::mouseDown(const CppArgumentList& arguments, CppVariant* result)
 {
     if (result) // Could be 0 if invoked asynchronously.
         result->setNull();
 
-    webview()->layout();
-
     int buttonNumber = getButtonNumberFromSingleArg(arguments);
     WEBKIT_ASSERT(buttonNumber != -1);
 
     WebMouseEvent::Button buttonType = getButtonTypeFromButtonNumber(buttonNumber);
 
     updateClickCountForButton(buttonType);
 
     WebMouseEvent event;
     pressedButton = buttonType;
     initMouseEvent(WebInputEvent::MouseDown, buttonType, lastMousePos, &event, getCurrentEventTimeSec(m_delegate));
     if (arguments.size() >= 2 && (arguments[1].isObject() || arguments[1].isString()))
         applyKeyModifiers(&(arguments[1]), &event);
     webview()->handleInputEvent(event);
 }
 
 void EventSender::mouseUp(const CppArgumentList& arguments, CppVariant* result)
 {
     if (result) // Could be 0 if invoked asynchronously.
         result->setNull();
 
-    webview()->layout();
-
     int buttonNumber = getButtonNumberFromSingleArg(arguments);
     WEBKIT_ASSERT(buttonNumber != -1);
 
     WebMouseEvent::Button buttonType = getButtonTypeFromButtonNumber(buttonNumber);
 
     if (isDragMode() && !replayingSavedEvents) {
         SavedEvent savedEvent;
         savedEvent.type = SavedEvent::MouseUp;
         savedEvent.buttonType = buttonType;
         mouseEventQueue.push_back(savedEvent);
@@ skipping 38 matching lines @@
 
     currentDragData.reset();
 }
 
 void EventSender::mouseMoveTo(const CppArgumentList& arguments, CppVariant* result)
 {
     result->setNull();
 
     if (arguments.size() < 2 || !arguments[0].isNumber() || !arguments[1].isNumber())
         return;
-    webview()->layout();
 
     WebPoint mousePos(arguments[0].toInt32(), arguments[1].toInt32());
 
     if (isDragMode() && pressedButton == WebMouseEvent::ButtonLeft && !replayingSavedEvents) {
         SavedEvent savedEvent;
         savedEvent.type = SavedEvent::MouseMove;
         savedEvent.pos = mousePos;
         mouseEventQueue.push_back(savedEvent);
     } else {
         WebMouseEvent event;
@@ skipping 550 matching lines @@
     webview()->handleInputEvent(event);
 }
 
 void EventSender::handleMouseWheel(const CppArgumentList& arguments, CppVariant* result, bool continuous)
 {
     result->setNull();
 
     if (arguments.size() < 2 || !arguments[0].isNumber() || !arguments[1].isNumber())
         return;
 
-    // Force a layout here just to make sure every position has been
-    // determined before we send events (as well as all the other methods
-    // that send an event do).
-    webview()->layout();
-
     int horizontal = arguments[0].toInt32();
     int vertical = arguments[1].toInt32();
     int paged = false;
     int hasPreciseScrollingDeltas = false;
 
     if (arguments.size() > 2 && arguments[2].isBool())
         paged = arguments[2].toBoolean();
 
     if (arguments.size() > 3 && arguments[3].isBool())
         hasPreciseScrollingDeltas = arguments[3].toBoolean();
@@ skipping 257 matching lines @@
 {
     result->setNull();
 }
 
 void EventSender::clearKillRing(const CppArgumentList&, CppVariant* result)
 {
     result->setNull();
 }
 
 }