Fixed memory issues with EventHandler::TouchInfo.

Source/core/input/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 3522 matching lines @@
     for (unsigned i = 0; i < touchInfos.size(); ++i) {
         const TouchInfo& touchInfo = touchInfos[i];
         const PlatformTouchPoint& point = touchInfo.point;
         PlatformTouchPoint::State pointState = point.state();
 
         if (touchInfo.consumed)
             continue;
 
         RefPtrWillBeRawPtr<Touch> touch = Touch::create(
             touchInfo.targetFrame,
-            touchInfo.touchTarget,
+            touchInfo.touchTarget.get(),
             point.id(),
             point.screenPos(),
             touchInfo.adjustedPagePoint,
             touchInfo.adjustedRadius,
             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.
-        TargetTouchesHeapMap::iterator targetTouchesIterator = touchesByTarget.find(touchInfo.touchTarget);
+        TargetTouchesHeapMap::iterator targetTouchesIterator = touchesByTarget.find(touchInfo.touchTarget.get());
         if (targetTouchesIterator == touchesByTarget.end()) {
-            touchesByTarget.set(touchInfo.touchTarget, TouchList::create());
-            targetTouchesIterator = touchesByTarget.find(touchInfo.touchTarget);
+            touchesByTarget.set(touchInfo.touchTarget.get(), TouchList::create());
+            targetTouchesIterator = touchesByTarget.find(touchInfo.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);
         }
 
@@ skipping 192 matching lines @@
             targetFrame = m_touchSequenceDocument->frame();
         }
         ASSERT(targetFrame);
 
         // pagePoint should always be in the target element's document coordinates.
         FloatPoint pagePoint = targetFrame->view()->rootFrameToContents(point.pos());
         float scaleFactor = 1.0f / targetFrame->pageZoomFactor();
 
         TouchInfo& touchInfo = touchInfos[i];
         touchInfo.point = point;
-        touchInfo.touchTarget = touchTarget.get();
+        touchInfo.touchTarget = touchTarget;
         touchInfo.targetFrame = targetFrame;
         touchInfo.adjustedPagePoint = pagePoint.scaledBy(scaleFactor);
         touchInfo.adjustedRadius = point.radius().scaledBy(scaleFactor);
         touchInfo.knownTarget = knownTarget;
         touchInfo.consumed = false;
     }
 
     if (RuntimeEnabledFeatures::pointerEventEnabled()) {
         dispatchPointerEventsForTouchEvent(event, touchInfos);
         // TODO(mustaq): This needs attention.
@@ skipping 110 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink