https://bugs.webkit.org/show_bug.cgi?id=120911

Reviewed by Andreas Kling.

Source/WebCore:

Update for WTF changes.

* platform/network/cf/FormDataStreamCFNet.cpp:
(WebCore::advanceCurrentStream):

Source/WTF:

Due to an oversight on my part, Vector::releaseBuffer() currently returns an OwnPtr
which means that its data will be freed with operator delete instead of fastFree.

Fix this by introducing a new MllocPtr smart pointer class and change Vector::releaseBuffer() to return it instead.

* WTF.pro:
* WTF.vcxproj/WTF.vcxproj:
* WTF.vcxproj/WTF.vcxproj.filters:
* WTF.xcodeproj/project.pbxproj:
* wtf/CMakeLists.txt:
* wtf/FastAllocBase.h:
* wtf/MallocPtr.h: Added.
* wtf/Vector.h:
* wtf/text/StringBuffer.h:
* wtf/text/StringImpl.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155242 268f45cc-cd09-0410-ab3c-d52691b4dbfc