am 678de4ac: Fix document.createTouchList crash.

* commit '678de4acf72e6fd4c6fb9426d2c69445acc18135':
  Fix document.createTouchList crash.

3 files changed, 3 insertions, 10 deletions

diff --git a/Source/WebCore/bindings/v8/custom/V8DocumentCustom.cpp b/Source/WebCore/bindings/v8/custom/V8DocumentCustom.cpp
index 7cad58e..d142a9f 100644
--- a/Source/WebCore/bindings/v8/custom/V8DocumentCustom.cpp
+++ b/Source/WebCore/bindings/v8/custom/V8DocumentCustom.cpp
@@ -43,6 +43,7 @@
 #include "V8CanvasRenderingContext2D.h"
 #include "V8CustomXPathNSResolver.h"
 #include "V8DOMImplementation.h"
+#include "V8DOMWrapper.h"
 #include "V8HTMLDocument.h"
 #include "V8IsolatedContext.h"
 #include "V8Node.h"
@@ -144,9 +145,8 @@ v8::Handle<v8::Value> V8Document::createTouchListCallback(const v8::Arguments& a
     RefPtr<TouchList> touchList = TouchList::create();
 
     for (int i = 0; i < args.Length(); i++) {
-        if (!args[i]->IsObject())
-            return v8::Undefined();
-        touchList->append(V8Touch::toNative(args[i]->ToObject()));
+        Touch* touch = V8DOMWrapper::isWrapperOfType(args[i], &V8Touch::info) ? V8Touch::toNative(args[i]->ToObject()) : 0;
+        touchList->append(touch);
     }
 
     return toV8(touchList.release());
diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp
index ff50390..b6a1393 100644
--- a/Source/WebCore/dom/Document.cpp
+++ b/Source/WebCore/dom/Document.cpp
@@ -5064,15 +5064,9 @@ PassRefPtr<Touch> Document::createTouch(DOMWindow* window, EventTarget* target,
     // http://developer.apple.com/library/safari/#documentation/UserExperience/Reference/DocumentAdditionsReference/DocumentAdditions/DocumentAdditions.html
     // when this method should throw and nor is it by inspection of iOS behavior. It would be nice to verify any cases where it throws under iOS
     // and implement them here. See https://bugs.webkit.org/show_bug.cgi?id=47819
-    // Ditto for the createTouchList method below.
     Frame* frame = window ? window->frame() : this->frame();
     return Touch::create(frame, target, identifier, screenX, screenY, pageX, pageY);
 }
-
-PassRefPtr<TouchList> Document::createTouchList(ExceptionCode&) const
-{
-    return TouchList::create();
-}
 #endif
 
 DocumentLoader* Document::loader() const
diff --git a/Source/WebCore/dom/Document.h b/Source/WebCore/dom/Document.h
index a4fc266..ce82b2e 100644
--- a/Source/WebCore/dom/Document.h
+++ b/Source/WebCore/dom/Document.h
@@ -1085,7 +1085,6 @@ public:
 
 #if ENABLE(TOUCH_EVENTS)
     PassRefPtr<Touch> createTouch(DOMWindow*, EventTarget*, int identifier, int pageX, int pageY, int screenX, int screenY, ExceptionCode&) const;
-    PassRefPtr<TouchList> createTouchList(ExceptionCode&) const;
 #endif
 
     const DocumentTiming* timing() const { return &m_documentTiming; }