Simpler return value of HashTable::add/HashMap:add and others

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 3697 matching lines @@
         int adjustedRadiusY = lroundf(point.radiusY() / scaleFactor);
 
         RefPtr<Touch> touch = Touch::create(targetFrame, touchTarget.get(), point.id(),
                                             point.screenPos().x(), point.screenPos().y(),
                                             adjustedPageX, adjustedPageY,
                                             adjustedRadiusX, adjustedRadiusY,
                                             point.rotationAngle(), point.force());
 
         // Ensure this target's touch list exists, even if it ends up empty, so it can always be passed to TouchEvent::Create below.
         TargetTouchesMap::iterator targetTouchesIterator = touchesByTarget.find(touchTarget.get());
-        if (targetTouchesIterator == touchesByTarget.end())
-            targetTouchesIterator = touchesByTarget.set(touchTarget.get(), TouchList::create()).iterator;
+        if (targetTouchesIterator == touchesByTarget.end()) {
+            touchesByTarget.set(touchTarget.get(), TouchList::create());
+            targetTouchesIterator = touchesByTarget.find(touchTarget.get());
+        }
 
         // touches and targetTouches should only contain information about touches still on the screen, so if this point is
         // released or cancelled it will only appear in the changedTouches list.
         if (pointState != PlatformTouchPoint::TouchReleased && pointState != PlatformTouchPoint::TouchCancelled) {
             touches->append(touch);
             targetTouchesIterator->value->append(touch);
         }
 
         // Now build up the correct list for changedTouches.
         // Note that  any touches that are in the TouchStationary state (e.g. if
@@ skipping 284 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace WebCore