https://bugs.webkit.org/show_bug.cgi?id=29351
rdar://problem/7142294

Patch by Darin Adler <darin@apple.com> on 2009-09-18
Reviewed by Sam Weinig.

* WebCore.base.exp: Added a newly-needed exported symbol.

* bindings/objc/DOMInternal.h: Eliminated unused
createWrapperCacheWithIntegerKeys; it has not been needed since the
RGBColor wrappers were reworked.
* bindings/objc/DOMInternal.mm: Ditto.

* bridge/objc/objc_instance.h: Made the create function non-inline.
* bridge/objc/objc_instance.mm:
(createInstanceWrapperCache): Added. Creates an appropriate map table.
(ObjcInstance::create): Moved here from header. Uses NSMapGet and
NSMapInsert to cache the instance in a map table.
(ObjcInstance::~ObjcInstance): Added a call to NSMapRemove to remove
the instance from the map table.

* bridge/qt/qt_instance.cpp:
(JSC::Bindings::QtInstance::~QtInstance): Remove unneeded code to remove
the instance from cachedObjects, which no longer exists.
(JSC::Bindings::QtInstance::newRuntimeObject): Renamed to overload new
bottleneck. Caching is now handled by the base class.

* bridge/runtime.cpp:
(JSC::Bindings::Instance::Instance): Initialize m_runtimeObject to 0.
(JSC::Bindings::Instance::~Instance): Assert m_runtimeObject is 0.
(JSC::Bindings::Instance::createRuntimeObject): Use m_runtimeObject
if it's already set. Set m_runtimeObject and call addRuntimeObject
if it's not.
(JSC::Bindings::Instance::newRuntimeObject): Added. Virtual function,
used only by createRuntimeObject.
(JSC::Bindings::Instance::willDestroyRuntimeObject): Added.
Calls removeRuntimeObject and then clears m_runtimeObject.
(JSC::Bindings::Instance::willInvalidateRuntimeObject): Added.
Clears m_runtimeObject.

* bridge/runtime.h: Made createRuntimeObject non-virtual. Added
willDestroyRuntimeObject, willInvalidateRuntimeObject,
newRuntimeObject, and m_runtimeObject.

* bridge/runtime_object.cpp:
(JSC::RuntimeObjectImp::RuntimeObjectImp): Removed addRuntimeObject
call, now handled by caller.
(JSC::RuntimeObjectImp::~RuntimeObjectImp): Replaced removeRuntimeObject
call with willDestroyRuntimeObject call; the latter nows calls
removeRuntimeObject.
(JSC::RuntimeObjectImp::invalidate): Added willInvalidateRuntimeObject
call.

* bridge/runtime_object.h: Made invalidate non-virtual.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@48513 268f45cc-cd09-0410-ab3c-d52691b4dbfc